{"id":"CVE-2026-41376","aliases":["EUVD-2026-26085","GHSA-rg8m-3943-vm6q"],"status":"published","title":"OpenClaw \u003c 2026.3.31 - Matrix Thread Context Allowlist Bypass via Sender Validation","description":"OpenClaw before 2026.3.31 contains an allowlist bypass vulnerability in Matrix thread root and reply context handling that fails to properly validate message senders. Attackers can fetch thread-root and reply context messages that should be filtered by sender allowlists, bypassing access controls.","severity":{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00157,"percentile":0.0487,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-346","CWE-863"],"published":"2026-04-02T21:00:44Z","modified":"2026-10-28T02:30:42Z","fixes":[{"ecosystem":"npm","package":"openclaw","fixed_in":["2026.3.31"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2026.3.28"},{"fixed":"2026.3.31"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.3.31"}]}]}],"products":[{"vendor":"openclaw","product":"openclaw"}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-rg8m-3943-vm6q","tags":["vendor-advisory","Vendor Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/commit/8a563d603b70ef6338915f0527bee87282c3bad5","tags":["patch","Patch","fix","web"]},{"url":"https://www.vulncheck.com/advisories/openclaw-matrix-thread-context-allowlist-bypass-via-sender-validation","tags":["third-party-advisory","Third Party Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/releases/tag/v2026.3.31","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41376","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-rg8m-3943-vm6q"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41376.json","tags":["advisory"]},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-41376","title":"OpenClaw \u003c 2026.3.31 - Matrix Thread Context Allowlist Bypass via Sender Validation","description":"OpenClaw before 2026.3.31 contains an allowlist bypass vulnerability in Matrix thread root and reply context handling that fails to properly validate message senders. Attackers can fetch thread-root and reply context messages that should be filtered by sender allowlists, bypassing access controls.","status":"published","published":"2026-04-28T18:09:39.883Z","modified":"2026-04-29T13:33:51.478Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"low","assessor":"cna"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T13:41:08.498858Z"}],"euvd":[{"id":"EUVD-2026-26085","description":"OpenClaw before 2026.3.31 contains an allowlist bypass vulnerability in Matrix thread root and reply context handling that fails to properly validate message senders. Attackers can fetch thread-root and reply context messages that should be filtered by sender allowlists, bypassing access controls.","status":"published","published":"2026-04-28T18:09:39Z","modified":"2026-04-29T13:33:51Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"low"}],"updated_at":"2026-11-02T19:05:19.922616Z"}],"ghsa":[{"id":"GHSA-rg8m-3943-vm6q","title":"OpenClaw: Matrix thread root and reply context bypass sender allowlist","description":"## Summary\nMatrix thread root and reply context bypass sender allowlist\n\n## Current Maintainer Triage\n- Status: open\n- Normalized severity: medium\n- Assessment: Real in shipped v2026.3.28 Matrix because fetched thread-root/reply context bypasses sender allowlists, with unreleased mainline filtering fix.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Latest published npm version: `2026.3.31`\n- Vulnerable version range: `\u003c=2026.3.28`\n- Patched versions: `\u003e= 2026.3.31`\n- First stable tag containing the fix: `v2026.3.31`\n\n## Fix Commit(s)\n- `8a563d603b70ef6338915f0527bee87282c3bad5` — 2026-03-31T17:09:03+01:00\n\nOpenClaw thanks @AntAISecurityLab for reporting.","status":"published","published":"2026-04-02T21:00:44Z","modified":"2026-05-06T22:23:20Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"low"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-346","CWE-863"],"updated_at":"2026-11-02T14:40:02.883746Z"}],"nvd":[{"id":"CVE-2026-41376","description":"OpenClaw before 2026.3.31 contains an allowlist bypass vulnerability in Matrix thread root and reply context handling that fails to properly validate message senders. Attackers can fetch thread-root and reply context messages that should be filtered by sender allowlists, bypassing access controls.","status":"published","published":"2026-04-28T19:37:40.413Z","modified":"2026-06-17T10:46:36.883Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/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","level":"low","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T14:12:16.252509Z"}],"osv":[{"id":"CVE-2026-41376","title":"OpenClaw \u003c 2026.3.31 - Matrix Thread Context Allowlist Bypass via Sender Validation","description":"OpenClaw before 2026.3.31 contains an allowlist bypass vulnerability in Matrix thread root and reply context handling that fails to properly validate message senders. Attackers can fetch thread-root and reply context messages that should be filtered by sender allowlists, bypassing access controls.","status":"published","published":"2026-04-28T18:09:39.883Z","modified":"2026-10-28T02:30:42.440650752Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"low"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T15:45:03.764807Z"},{"id":"GHSA-rg8m-3943-vm6q","title":"OpenClaw: Matrix thread root and reply context bypass sender allowlist","description":"## Summary\nMatrix thread root and reply context bypass sender allowlist\n\n## Current Maintainer Triage\n- Status: open\n- Normalized severity: medium\n- Assessment: Real in shipped v2026.3.28 Matrix because fetched thread-root/reply context bypasses sender allowlists, with unreleased mainline filtering fix.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Latest published npm version: `2026.3.31`\n- Vulnerable version range: `\u003c=2026.3.28`\n- Patched versions: `\u003e= 2026.3.31`\n- First stable tag containing the fix: `v2026.3.31`\n\n## Fix Commit(s)\n- `8a563d603b70ef6338915f0527bee87282c3bad5` — 2026-03-31T17:09:03+01:00\n\nOpenClaw thanks @AntAISecurityLab for reporting.","status":"published","published":"2026-04-02T21:00:44Z","modified":"2026-05-06T22:32:48.924749Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"},{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"low"}],"cwes":["CWE-346","CWE-863"],"updated_at":"2026-11-02T15:46:55.877614Z"}]}}