OpenClaw (npm package 'openclaw') before 2026.8.1 does not apply the originating sender's global...
zetlyn/cve-ghsa vulnerability ghsa GHSA-m2g4-5ff5-4cf5 cve CVE-2026-100538 known 2026-09-26
https://github.com/advisories/GHSA-m2g4-5ff5-4cf5
Properties
| cvss | 6.5receipt
What the source handed over{
"credits": [],
"cve_id": "CVE-2026-100538",
"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-863",
"name": "Incorrect Authorization"
}
],
"description": "OpenClaw (npm package 'openclaw') before 2026.8.1 does not apply the originating sender's global or per-agent toolsBySender policy when handling outbound attachments. A sender that has been explicitly denied filesystem read tools can still cause a known local file to be read and returned via a final-response media directive or a message attachment, disclosing local file contents to an admitted requester whose agent turn did not include the read tool. Exploitation requires knowledge or derivation of a useful host path and a delivery flow that accepts local attachments. The issue is fixed in version 2026.8.1.",
"epss": {
"percentage": 0.00258,
"percentile": 0.15663
},
"ghsa_id": "GHSA-m2g4-5ff5-4cf5",
"github_reviewed_at": null,
"html_url": "https://github.com/advisories/GHSA-m2g4-5ff5-4cf5",
"identifiers": [
{
"type": "GHSA",
"value": "GHSA-m2g4-5ff5-4cf5"
},
{
"type": "CVE",
"value": "CVE-2026-100538"
}
],
"nvd_published_at": "2026-09-26T03:16:59Z",
"published_at": "2026-09-26T03:30:24Z",
"references": [
"https://github.com/openclaw/openclaw/security/advisories/GHSA-w5x7-c87m-3jpc",
"https://nvd.nist.gov/vuln/detail/CVE-2026-100538",
"https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-local-file-read-via-outbound-attachments",
"https://github.com/advisories/GHSA-m2g4-5ff5-4cf5"
],
"repository_advisory_url": null,
"severity": "high",
"source_code_location": "",
"summary": "OpenClaw (npm package 'openclaw') before 2026.8.1 does not apply the originating sender's global...",
"type": "unreviewed",
"updated_at": "2026-09-26T03:30:28Z",
"url": "https://api.github.com/advisories/GHSA-m2g4-5ff5-4cf5",
"vulnerabilities": [],
"withdrawn_at": null
} |
|---|---|
| cwe | CWE-863receipt
What the source handed over{
"credits": [],
"cve_id": "CVE-2026-100538",
"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-863",
"name": "Incorrect Authorization"
}
],
"description": "OpenClaw (npm package 'openclaw') before 2026.8.1 does not apply the originating sender's global or per-agent toolsBySender policy when handling outbound attachments. A sender that has been explicitly denied filesystem read tools can still cause a known local file to be read and returned via a final-response media directive or a message attachment, disclosing local file contents to an admitted requester whose agent turn did not include the read tool. Exploitation requires knowledge or derivation of a useful host path and a delivery flow that accepts local attachments. The issue is fixed in version 2026.8.1.",
"epss": {
"percentage": 0.00258,
"percentile": 0.15663
},
"ghsa_id": "GHSA-m2g4-5ff5-4cf5",
"github_reviewed_at": null,
"html_url": "https://github.com/advisories/GHSA-m2g4-5ff5-4cf5",
"identifiers": [
{
"type": "GHSA",
"value": "GHSA-m2g4-5ff5-4cf5"
},
{
"type": "CVE",
"value": "CVE-2026-100538"
}
],
"nvd_published_at": "2026-09-26T03:16:59Z",
"published_at": "2026-09-26T03:30:24Z",
"references": [
"https://github.com/openclaw/openclaw/security/advisories/GHSA-w5x7-c87m-3jpc",
"https://nvd.nist.gov/vuln/detail/CVE-2026-100538",
"https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-local-file-read-via-outbound-attachments",
"https://github.com/advisories/GHSA-m2g4-5ff5-4cf5"
],
"repository_advisory_url": null,
"severity": "high",
"source_code_location": "",
"summary": "OpenClaw (npm package 'openclaw') before 2026.8.1 does not apply the originating sender's global...",
"type": "unreviewed",
"updated_at": "2026-09-26T03:30:28Z",
"url": "https://api.github.com/advisories/GHSA-m2g4-5ff5-4cf5",
"vulnerabilities": [],
"withdrawn_at": null
} |
| severity | high From 7.0 to 8.9. receipt
What the source handed over{
"credits": [],
"cve_id": "CVE-2026-100538",
"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-863",
"name": "Incorrect Authorization"
}
],
"description": "OpenClaw (npm package 'openclaw') before 2026.8.1 does not apply the originating sender's global or per-agent toolsBySender policy when handling outbound attachments. A sender that has been explicitly denied filesystem read tools can still cause a known local file to be read and returned via a final-response media directive or a message attachment, disclosing local file contents to an admitted requester whose agent turn did not include the read tool. Exploitation requires knowledge or derivation of a useful host path and a delivery flow that accepts local attachments. The issue is fixed in version 2026.8.1.",
"epss": {
"percentage": 0.00258,
"percentile": 0.15663
},
"ghsa_id": "GHSA-m2g4-5ff5-4cf5",
"github_reviewed_at": null,
"html_url": "https://github.com/advisories/GHSA-m2g4-5ff5-4cf5",
"identifiers": [
{
"type": "GHSA",
"value": "GHSA-m2g4-5ff5-4cf5"
},
{
"type": "CVE",
"value": "CVE-2026-100538"
}
],
"nvd_published_at": "2026-09-26T03:16:59Z",
"published_at": "2026-09-26T03:30:24Z",
"references": [
"https://github.com/openclaw/openclaw/security/advisories/GHSA-w5x7-c87m-3jpc",
"https://nvd.nist.gov/vuln/detail/CVE-2026-100538",
"https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-local-file-read-via-outbound-attachments",
"https://github.com/advisories/GHSA-m2g4-5ff5-4cf5"
],
"repository_advisory_url": null,
"severity": "high",
"source_code_location": "",
"summary": "OpenClaw (npm package 'openclaw') before 2026.8.1 does not apply the originating sender's global...",
"type": "unreviewed",
"updated_at": "2026-09-26T03:30:28Z",
"url": "https://api.github.com/advisories/GHSA-m2g4-5ff5-4cf5",
"vulnerabilities": [],
"withdrawn_at": null
} |
Text
OpenClaw (npm package 'openclaw') before 2026.8.1 does not apply the originating sender's global...
OpenClaw (npm package 'openclaw') before 2026.8.1 does not apply the originating sender's global or per-agent toolsBySender policy when handling outbound attachments. A sender that has been explicitly denied filesystem read tools can still cause a known local file to be read and returned via a final-response media directive or a message attachment, disclosing local file contents to an admitted requester whose agent turn did not include the read tool. Exploitation requires knowledge or derivation of a useful host path and a delivery flow that accepts local attachments. The issue is fixed in version 2026.8.1.