{"id":"CVE-2026-44118","aliases":["GHSA-r6xh-pqhr-v4xh"],"url":"https://o3.security/vulnerability/CVE-2026-44118","summary":"OpenClaw < 2026.4.22 - Owner Context Spoofing via Bearer Token Header","details":"## Summary\nMCP loopback owner context is derived from server-issued bearer tokens.\n\n## Affected Packages / Versions\n- Package: openclaw (npm)\n- Affected versions: <= 2026.4.21\n- Fixed version: 2026.4.22\n\n## Impact\nThe loopback MCP path accepted spoofable owner-context metadata from request headers, which could allow a non-owner loopback client to present itself as owner for owner-gated operations.\n\n## Fix\nThe MCP loopback runtime now issues separate owner and non-owner bearer tokens and derives senderIsOwner exclusively from which token authenticated the request. The spoofable sender-owner header is no longer emitted or trusted.\n\n## Fix Commit(s)\n- 3cb1a56bfc9579a0f2336f9cfa12a8a744332a19\n\n## Verification\n- The fix commit is contained in the public v2026.4.22 tag.\n- openclaw@2026.4.22 is published on npm and the compiled package contains the fix.\n- Focused regression coverage for this path passed before publication.\n\nOpenClaw thanks @VladimirEliTokarev for reporting.","published":"2026-05-06T19:49:37.173Z","modified":"2026-09-25T03:31:07.642800286Z","cvss":null,"epss":{"score":0.00112,"percentile":0.01606,"asOf":"2026-08-13"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"openclaw","fixedVersion":"2026.4.22"}],"fix":{"url":"https://github.com/openclaw/openclaw/commit/3cb1a56bfc9579a0f2336f9cfa12a8a744332a19","label":"openclaw/openclaw@3cb1a56"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44118.json"},{"type":"ADVISORY","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-r6xh-pqhr-v4xh"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44118"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openclaw-owner-context-spoofing-via-bearer-token-header"},{"type":"FIX","url":"https://github.com/openclaw/openclaw/commit/3cb1a56bfc9579a0f2336f9cfa12a8a744332a19"},{"type":"PACKAGE","url":"https://github.com/openclaw/openclaw"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-25T03:31:07.642800286Z"}}