The @openclaw/slack npm package before 2026.8.1 contains an authorization flaw in its Slack...
zetlyn/cve-ghsa vulnerability ghsa GHSA-5xhr-95ww-q9w4 cve CVE-2026-100531 known 2026-09-26
https://github.com/advisories/GHSA-5xhr-95ww-q9w4
Properties
| cvss | 6.5receipt
What the source handed over{
"credits": [],
"cve_id": "CVE-2026-100531",
"cvss": {
"score": 6.5,
"vector_string": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
},
"cvss_severities": {
"cvss_v3": {
"score": 6.5,
"vector_string": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
},
"cvss_v4": {
"score": 7.1,
"vector_string": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
}
},
"cwes": [
{
"cwe_id": "CWE-639",
"name": "Authorization Bypass Through User-Controlled Key"
}
],
"description": "The @openclaw/slack npm package before 2026.8.1 contains an authorization flaw in its Slack download-file handler: when a file lacks the share metadata used to prove it belongs to the requested conversation, the conversation-authorization check fails open. An authenticated caller restricted to a single conversation who knows or obtains a file identifier can therefore download file contents from outside that conversation's scope, disclosing data across configured conversation boundaries. The issue does not allow listing arbitrary Slack files and does not bypass Slack authentication itself. The issue is fixed in version 2026.8.1.",
"epss": {
"percentage": 0.00327,
"percentile": 0.23274
},
"ghsa_id": "GHSA-5xhr-95ww-q9w4",
"github_reviewed_at": null,
"html_url": "https://github.com/advisories/GHSA-5xhr-95ww-q9w4",
"identifiers": [
{
"type": "GHSA",
"value": "GHSA-5xhr-95ww-q9w4"
},
{
"type": "CVE",
"value": "CVE-2026-100531"
}
],
"nvd_published_at": "2026-09-26T03:16:58Z",
"published_at": "2026-09-26T03:30:23Z",
"references": [
"https://github.com/openclaw/openclaw/security/advisories/GHSA-v7hh-7676-rg67",
"https://nvd.nist.gov/vuln/detail/CVE-2026-100531",
"https://www.vulncheck.com/advisories/openclaw-slack-before-2026.8.1-authorization-bypass",
"https://github.com/advisories/GHSA-5xhr-95ww-q9w4"
],
"repository_advisory_url": null,
"severity": "high",
"source_code_location": "",
"summary": "The @openclaw/slack npm package before 2026.8.1 contains an authorization flaw in its Slack...",
"type": "unreviewed",
"updated_at": "2026-09-26T03:30:28Z",
"url": "https://api.github.com/advisories/GHSA-5xhr-95ww-q9w4",
"vulnerabilities": [],
"withdrawn_at": null
} |
|---|---|
| cwe | CWE-639receipt
What the source handed over{
"credits": [],
"cve_id": "CVE-2026-100531",
"cvss": {
"score": 6.5,
"vector_string": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
},
"cvss_severities": {
"cvss_v3": {
"score": 6.5,
"vector_string": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
},
"cvss_v4": {
"score": 7.1,
"vector_string": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
}
},
"cwes": [
{
"cwe_id": "CWE-639",
"name": "Authorization Bypass Through User-Controlled Key"
}
],
"description": "The @openclaw/slack npm package before 2026.8.1 contains an authorization flaw in its Slack download-file handler: when a file lacks the share metadata used to prove it belongs to the requested conversation, the conversation-authorization check fails open. An authenticated caller restricted to a single conversation who knows or obtains a file identifier can therefore download file contents from outside that conversation's scope, disclosing data across configured conversation boundaries. The issue does not allow listing arbitrary Slack files and does not bypass Slack authentication itself. The issue is fixed in version 2026.8.1.",
"epss": {
"percentage": 0.00327,
"percentile": 0.23274
},
"ghsa_id": "GHSA-5xhr-95ww-q9w4",
"github_reviewed_at": null,
"html_url": "https://github.com/advisories/GHSA-5xhr-95ww-q9w4",
"identifiers": [
{
"type": "GHSA",
"value": "GHSA-5xhr-95ww-q9w4"
},
{
"type": "CVE",
"value": "CVE-2026-100531"
}
],
"nvd_published_at": "2026-09-26T03:16:58Z",
"published_at": "2026-09-26T03:30:23Z",
"references": [
"https://github.com/openclaw/openclaw/security/advisories/GHSA-v7hh-7676-rg67",
"https://nvd.nist.gov/vuln/detail/CVE-2026-100531",
"https://www.vulncheck.com/advisories/openclaw-slack-before-2026.8.1-authorization-bypass",
"https://github.com/advisories/GHSA-5xhr-95ww-q9w4"
],
"repository_advisory_url": null,
"severity": "high",
"source_code_location": "",
"summary": "The @openclaw/slack npm package before 2026.8.1 contains an authorization flaw in its Slack...",
"type": "unreviewed",
"updated_at": "2026-09-26T03:30:28Z",
"url": "https://api.github.com/advisories/GHSA-5xhr-95ww-q9w4",
"vulnerabilities": [],
"withdrawn_at": null
} |
| severity | high From 7.0 to 8.9. receipt
What the source handed over{
"credits": [],
"cve_id": "CVE-2026-100531",
"cvss": {
"score": 6.5,
"vector_string": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
},
"cvss_severities": {
"cvss_v3": {
"score": 6.5,
"vector_string": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
},
"cvss_v4": {
"score": 7.1,
"vector_string": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
}
},
"cwes": [
{
"cwe_id": "CWE-639",
"name": "Authorization Bypass Through User-Controlled Key"
}
],
"description": "The @openclaw/slack npm package before 2026.8.1 contains an authorization flaw in its Slack download-file handler: when a file lacks the share metadata used to prove it belongs to the requested conversation, the conversation-authorization check fails open. An authenticated caller restricted to a single conversation who knows or obtains a file identifier can therefore download file contents from outside that conversation's scope, disclosing data across configured conversation boundaries. The issue does not allow listing arbitrary Slack files and does not bypass Slack authentication itself. The issue is fixed in version 2026.8.1.",
"epss": {
"percentage": 0.00327,
"percentile": 0.23274
},
"ghsa_id": "GHSA-5xhr-95ww-q9w4",
"github_reviewed_at": null,
"html_url": "https://github.com/advisories/GHSA-5xhr-95ww-q9w4",
"identifiers": [
{
"type": "GHSA",
"value": "GHSA-5xhr-95ww-q9w4"
},
{
"type": "CVE",
"value": "CVE-2026-100531"
}
],
"nvd_published_at": "2026-09-26T03:16:58Z",
"published_at": "2026-09-26T03:30:23Z",
"references": [
"https://github.com/openclaw/openclaw/security/advisories/GHSA-v7hh-7676-rg67",
"https://nvd.nist.gov/vuln/detail/CVE-2026-100531",
"https://www.vulncheck.com/advisories/openclaw-slack-before-2026.8.1-authorization-bypass",
"https://github.com/advisories/GHSA-5xhr-95ww-q9w4"
],
"repository_advisory_url": null,
"severity": "high",
"source_code_location": "",
"summary": "The @openclaw/slack npm package before 2026.8.1 contains an authorization flaw in its Slack...",
"type": "unreviewed",
"updated_at": "2026-09-26T03:30:28Z",
"url": "https://api.github.com/advisories/GHSA-5xhr-95ww-q9w4",
"vulnerabilities": [],
"withdrawn_at": null
} |
Text
The @openclaw/slack npm package before 2026.8.1 contains an authorization flaw in its Slack...
The @openclaw/slack npm package before 2026.8.1 contains an authorization flaw in its Slack download-file handler: when a file lacks the share metadata used to prove it belongs to the requested conversation, the conversation-authorization check fails open. An authenticated caller restricted to a single conversation who knows or obtains a file identifier can therefore download file contents from outside that conversation's scope, disclosing data across configured conversation boundaries. The issue does not allow listing arbitrary Slack files and does not bypass Slack authentication itself. The issue is fixed in version 2026.8.1.