curl: libcurl: Information disclosure via incorrect Proxy-Authorization header reuse
cve CVE-2026-7168 2 sources, 2 claims · Watch
Red Hat writes:
curl: libcurl: Information disclosure via incorrect Proxy-Authorization header reuse the claim
curl: libcurl: Information disclosure via incorrect Proxy-Authorization header reuse the claim
- Severity
- MEDIUM NVDmoderate Red Hat
- CVSS
- 5.3 NVD5.3 Red Hat
- Fixed in
- 8.14.2, 8.16.1, 8.20.0 NVD
- Vendor
- curl NVD
- Product
- curl NVD
- CWE
- CWE-294 NVDCWE-201 Red Hat
How far exploitation has got
- No public code known
- Proof of concept
- Proof of concept, verified
- A Metasploit module
- Exploited in the wild
- Used in ransomware campaigns
Timeline
| 2026-05-13 | first spoke of it: Successfully using libcurl to do a transfer over a specific HTTP proxy (`proxyA`) with **Digest** authentication and then changing the proxy host to a second one (`proxyB`) for a second transfer, reusing the same handle, makes libcurl wrongly pass on the `Proxy-Authorization:` header field meant for `proxyA`, to `proxyB`. | NVD |
| 2026-05-13 | first spoke of it: curl: libcurl: Information disclosure via incorrect Proxy-Authorization header reuse | Red Hat |
What it is to other things
| affects | haxx/curl NVD |
| made_by | haxx NVD |
In words only, so not counted until a person confirms one:
| made_by | curlNVD says “curl” |
| affects | curl/curlNVD says “curl · curl” |
Every value, with what each source said and its receipt
| Property | Source | Said | Means here | ||||
|---|---|---|---|---|---|---|---|
| Automatable automatable | NVD | yes An attacker can reliably run all of the kill chain's first four steps without a person. receipt
What the source handed over{
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.12.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "c1cfdf59acbaf9504c4578d4cf56cdd7c8594507",
"status": "affected",
"version": "fc6eff13b5414caf6edf22d73a3239e074a04216",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
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{
"status": "affected",
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"status": "affected",
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{
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{
"status": "affected",
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{
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},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
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{
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{
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{
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{
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{
"status": "affected",
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{
"status": "affected",
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{
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{
"status": "affected",
"version": "7.66.0"
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{
"status": "affected",
"version": "7.65.3"
},
{
"status": "affected",
"version": "7.65.2"
},
{
"status": "affected",
"version": "7.65.1"
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{
"status": "affected",
"version": "7.65.0"
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{
"status": "affected",
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},
{
"status": "affected",
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{
"status": "affected",
"version": "7.63.0"
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{
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{
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{
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},
{
"status": "affected",
"version": "7.60.0"
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{
"status": "affected",
"version": "7.59.0"
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{
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{
"status": "affected",
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{
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{
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},
{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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"version": "7.40.0"
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{
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{
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"version": "7.38.0"
},
{
"status": "affected",
"version": "7.37.1"
},
{
"status": "affected",
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},
{
"status": "affected",
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{
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},
{
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},
{
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{
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{
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{
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{
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{
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{
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{
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{
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},
{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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},
{
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"version": "7.20.0"
},
{
"status": "affected",
"version": "7.19.7"
},
{
"status": "affected",
"version": "7.19.6"
},
{
"status": "affected",
"version": "7.19.5"
},
{
"status": "affected",
"version": "7.19.4"
},
{
"status": "affected",
"version": "7.19.3"
},
{
"status": "affected",
"version": "7.19.2"
},
{
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"version": "7.19.1"
},
{
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},
{
"status": "affected",
"version": "7.18.2"
},
{
"status": "affected",
"version": "7.18.1"
},
{
"status": "affected",
"version": "7.18.0"
},
{
"status": "affected",
"version": "7.17.1"
},
{
"status": "affected",
"version": "7.17.0"
},
{
"status": "affected",
"version": "7.16.4"
},
{
"status": "affected",
"version": "7.16.3"
},
{
"status": "affected",
"version": "7.16.2"
},
{
"status": "affected",
"version": "7.16.1"
},
{
"status": "affected",
"version": "7.16.0"
},
{
"status": "affected",
"version": "7.15.5"
},
{
"status": "affected",
"version": "7.15.4"
},
{
"status": "affected",
"version": "7.15.3"
},
{
"status": "affected",
"version": "7.15.2"
},
{
"status": "affected",
"version": "7.15.1"
},
{
"status": "affected",
"version": "7.15.0"
},
{
"status": "affected",
"version": "7.14.1"
},
{
"status": "affected",
"version": "7.14.0"
},
{
"status": "affected",
"version": "7.13.2"
},
{
"status": "affected",
"version": "7.13.1"
},
{
"status": "affected",
"version": "7.13.0"
},
{
"status": "affected",
"version": "7.12.3"
},
{
"status": "affected",
"version": "7.12.2"
},
{
"status": "affected",
"version": "7.12.1"
},
{
"status": "affected",
"version": "7.12.0"
}
]
}
],
"source": "2499f714-1537-4658-8207-48ae4bb9eae9"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*",
"matchCriteriaId": "29BC733F-6C8A-471C-BAAC-81727A2B0A19",
"versionEndExcluding": "8.20.0",
"versionStartIncluding": "7.12.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Successfully using libcurl to do a transfer over a specific HTTP proxy\n(`proxyA`) with **Digest** authentication and then changing the proxy host to\na second one (`proxyB`) for a second transfer, reusing the same handle, makes\nlibcurl wrongly pass on the `Proxy-Authorization:` header field meant for\n`proxyA`, to `proxyB`."
}
],
"id": "CVE-2026-7168",
"lastModified": "2026-09-15T07:16:29.890",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "nvd@nist.gov",
"type": "Primary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-7168",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-13T14:18:10.734219Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-05-13T13:01:57.200",
"references": [
{
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://curl.se/docs/CVE-2026-7168.html"
},
{
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"tags": [
"Vendor Advisory"
],
"url": "https://curl.se/docs/CVE-2026-7168.json"
},
{
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"tags": [
"Exploit",
"Issue Tracking"
],
"url": "https://hackerone.com/reports/3697719"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Patch"
],
"url": "http://www.openwall.com/lists/oss-security/2026/04/29/14"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
"Exploit",
"Issue Tracking"
],
"url": "https://hackerone.com/reports/3697719"
}
],
"sourceIdentifier": "2499f714-1537-4658-8207-48ae4bb9eae9",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-294"
}
],
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-294"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
} | — | ||||
| CVSS cvss | NVD | 5.3receipt
What the source handed over{
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.12.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "c1cfdf59acbaf9504c4578d4cf56cdd7c8594507",
"status": "affected",
"version": "fc6eff13b5414caf6edf22d73a3239e074a04216",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
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}
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],
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"value": "Successfully using libcurl to do a transfer over a specific HTTP proxy\n(`proxyA`) with **Digest** authentication and then changing the proxy host to\na second one (`proxyB`) for a second transfer, reusing the same handle, makes\nlibcurl wrongly pass on the `Proxy-Authorization:` header field meant for\n`proxyA`, to `proxyB`."
}
],
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"lastModified": "2026-09-15T07:16:29.890",
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},
{
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],
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"type": "Primary"
}
]
}
} | — | ||||
| CVSS cvss | Red Hat | 5.3receipt
What the source handed over{
"CVE": "CVE-2026-7168",
"CWE": "CWE-201",
"advisories": [
"RHSA-2026:19106"
],
"affected_packages": [
"curl-main-8.20.0-2.hum1"
],
"bugzilla": "2476979",
"bugzilla_description": "curl: libcurl: Information disclosure via incorrect Proxy-Authorization header reuse",
"cvss3_score": "5.3",
"cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"cvss_score": null,
"cvss_scoring_vector": null,
"package_state": null,
"public_date": "2026-05-13T08:29:08Z",
"resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-7168.json",
"severity": "moderate"
} | — | ||||
| CVSS vector cvss_vector | NVD | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nreceipt
What the source handed over{
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}
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{
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},
{
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}
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],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
} | — | ||||
| CVSS vector cvss_vector | Red Hat | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nreceipt
What the source handed over{
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"CWE": "CWE-201",
"advisories": [
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],
"affected_packages": [
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],
"bugzilla": "2476979",
"bugzilla_description": "curl: libcurl: Information disclosure via incorrect Proxy-Authorization header reuse",
"cvss3_score": "5.3",
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"cvss_score": null,
"cvss_scoring_vector": null,
"package_state": null,
"public_date": "2026-05-13T08:29:08Z",
"resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-7168.json",
"severity": "moderate"
} | — | ||||
| CWE cwe different words | NVD | CWE-294receipt
What the source handed over{
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} | — | ||||
| CWE cwe different words | Red Hat | CWE-201receipt
What the source handed over{
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"CWE": "CWE-201",
"advisories": [
"RHSA-2026:19106"
],
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],
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"cvss_score": null,
"cvss_scoring_vector": null,
"package_state": null,
"public_date": "2026-05-13T08:29:08Z",
"resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-7168.json",
"severity": "moderate"
} | — | ||||
| Exploitation exploitation | NVD | poc A public proof of concept exists, or exploitation is trivial. receipt
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{
"automatable": "yes"
},
{
"technicalImpact": "partial"
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"version": "2.0.3"
}
}
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},
{
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},
{
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"tags": [
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},
{
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},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
"Exploit",
"Issue Tracking"
],
"url": "https://hackerone.com/reports/3697719"
}
],
"sourceIdentifier": "2499f714-1537-4658-8207-48ae4bb9eae9",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
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"value": "CWE-294"
}
],
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-294"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
} | — | ||||
| Fixed in fixed_in | NVD | 8.14.2, 8.16.1, 8.20.0receipt
What the source handed over{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
"status": "affected",
"version": "7.20.0"
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{
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"version": "7.19.7"
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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},
{
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},
{
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},
{
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{
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{
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},
{
"status": "affected",
"version": "7.15.4"
},
{
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},
{
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},
{
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},
{
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"version": "7.15.0"
},
{
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"version": "7.14.1"
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{
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"version": "7.14.0"
},
{
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},
{
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},
{
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"version": "7.13.0"
},
{
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"version": "7.12.3"
},
{
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"version": "7.12.2"
},
{
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"version": "7.12.1"
},
{
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"version": "7.12.0"
}
]
}
],
"source": "2499f714-1537-4658-8207-48ae4bb9eae9"
}
],
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{
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{
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{
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"matchCriteriaId": "29BC733F-6C8A-471C-BAAC-81727A2B0A19",
"versionEndExcluding": "8.20.0",
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Successfully using libcurl to do a transfer over a specific HTTP proxy\n(`proxyA`) with **Digest** authentication and then changing the proxy host to\na second one (`proxyB`) for a second transfer, reusing the same handle, makes\nlibcurl wrongly pass on the `Proxy-Authorization:` header field meant for\n`proxyA`, to `proxyB`."
}
],
"id": "CVE-2026-7168",
"lastModified": "2026-09-15T07:16:29.890",
"metrics": {
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{
"cvssData": {
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
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"source": "nvd@nist.gov",
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},
{
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"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
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},
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"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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{
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],
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}
}
]
},
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},
{
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"tags": [
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],
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},
{
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"tags": [
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
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}
],
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"value": "CWE-294"
}
],
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"type": "Secondary"
},
{
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{
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"value": "CWE-294"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
} | — | ||||
| Packages packages | Red Hat | curl-main-8.20.0-2.hum1receipt
What the source handed over{
"CVE": "CVE-2026-7168",
"CWE": "CWE-201",
"advisories": [
"RHSA-2026:19106"
],
"affected_packages": [
"curl-main-8.20.0-2.hum1"
],
"bugzilla": "2476979",
"bugzilla_description": "curl: libcurl: Information disclosure via incorrect Proxy-Authorization header reuse",
"cvss3_score": "5.3",
"cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"cvss_score": null,
"cvss_scoring_vector": null,
"package_state": null,
"public_date": "2026-05-13T08:29:08Z",
"resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-7168.json",
"severity": "moderate"
} | — | ||||
| Product product | NVD | curlreceipt
What the source handed over{
"cve": {
"affected": [
{
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{
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"product": "curl",
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{
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}
]
},
{
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}
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{
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{
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{
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{
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},
{
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{
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},
{
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{
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{
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{
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{
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{
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"value": "Successfully using libcurl to do a transfer over a specific HTTP proxy\n(`proxyA`) with **Digest** authentication and then changing the proxy host to\na second one (`proxyB`) for a second transfer, reusing the same handle, makes\nlibcurl wrongly pass on the `Proxy-Authorization:` header field meant for\n`proxyA`, to `proxyB`."
}
],
"id": "CVE-2026-7168",
"lastModified": "2026-09-15T07:16:29.890",
"metrics": {
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{
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
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"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
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{
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],
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],
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},
{
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{
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},
{
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"tags": [
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],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
} | — | ||||
| Severity severity | NVD | MEDIUM From 4.0 to 6.9. receipt
What the source handed over{
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"value": "Successfully using libcurl to do a transfer over a specific HTTP proxy\n(`proxyA`) with **Digest** authentication and then changing the proxy host to\na second one (`proxyB`) for a second transfer, reusing the same handle, makes\nlibcurl wrongly pass on the `Proxy-Authorization:` header field meant for\n`proxyA`, to `proxyB`."
}
],
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"lastModified": "2026-09-15T07:16:29.890",
"metrics": {
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
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{
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}
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},
{
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{
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},
{
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"value": "CWE-294"
}
],
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}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
} | medium | ||||
| Severity severity | Red Hat | moderate A flaw that is harder to exploit, or whose impact is limited. receipt
What the source handed over{
"CVE": "CVE-2026-7168",
"CWE": "CWE-201",
"advisories": [
"RHSA-2026:19106"
],
"affected_packages": [
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],
"bugzilla": "2476979",
"bugzilla_description": "curl: libcurl: Information disclosure via incorrect Proxy-Authorization header reuse",
"cvss3_score": "5.3",
"cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"cvss_score": null,
"cvss_scoring_vector": null,
"package_state": null,
"public_date": "2026-05-13T08:29:08Z",
"resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-7168.json",
"severity": "moderate"
} | medium | ||||
| Status status | NVD | Modifiedreceipt
What the source handed over{
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| Technical impact technical_impact | NVD | partial The attacker gains limited control, or limited information. receipt
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],
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},
{
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"tags": [
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],
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},
{
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
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],
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Patch"
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"url": "http://www.openwall.com/lists/oss-security/2026/04/29/14"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
"Exploit",
"Issue Tracking"
],
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}
],
"sourceIdentifier": "2499f714-1537-4658-8207-48ae4bb9eae9",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
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"value": "CWE-294"
}
],
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-294"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
} | — | ||||
| Vendor vendor | NVD | curlreceipt
What the source handed over{
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}
],
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{
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{
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{
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}
],
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]
}
],
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{
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"value": "Successfully using libcurl to do a transfer over a specific HTTP proxy\n(`proxyA`) with **Digest** authentication and then changing the proxy host to\na second one (`proxyB`) for a second transfer, reusing the same handle, makes\nlibcurl wrongly pass on the `Proxy-Authorization:` header field meant for\n`proxyA`, to `proxyB`."
}
],
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"lastModified": "2026-09-15T07:16:29.890",
"metrics": {
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
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{
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},
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"impactScore": 1.4,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
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{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-7168",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "yes"
},
{
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}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-13T14:18:10.734219Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-05-13T13:01:57.200",
"references": [
{
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"tags": [
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],
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},
{
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"tags": [
"Vendor Advisory"
],
"url": "https://curl.se/docs/CVE-2026-7168.json"
},
{
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"tags": [
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"Issue Tracking"
],
"url": "https://hackerone.com/reports/3697719"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"Patch"
],
"url": "http://www.openwall.com/lists/oss-security/2026/04/29/14"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
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"Issue Tracking"
],
"url": "https://hackerone.com/reports/3697719"
}
],
"sourceIdentifier": "2499f714-1537-4658-8207-48ae4bb9eae9",
"vulnStatus": "Modified",
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{
"description": [
{
"lang": "en",
"value": "CWE-294"
}
],
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-294"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
} | — |
Every claim, by kind
vulnerability
| curl: libcurl: Information disclosure via incorrect Proxy-Authorization header reuse zetlyn/cve-redhat · 2026-05-13 | cvss 5.3 cvss_vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N cwe CWE-201 packages curl-main-8.20.0-2.hum1 severity moderate | source |
| Successfully using libcurl to do a transfer over a specific HTTP proxy
(`proxyA`) with **Digest** authentication and then changing the proxy host to
a second one (`proxyB`) for a second transfer, reusing the same handle, makes
libcurl wrongly pass on the `Proxy-Authorization:` header field meant for
`proxyA`, to `proxyB`. zetlyn/cve-nvd · 2026-05-13 | automatable yes cvss 5.3 cvss_vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N cwe CWE-294 exploitation poc fixed_in 8.14.2, 8.16.1, 8.20.0 product curl severity MEDIUM status Modified technical_impact partial vendor curl | source |