{"id":"CVE-2026-34506","aliases":["GHSA-g7cr-9h7q-4qxq"],"url":"https://o3.security/vulnerability/CVE-2026-34506","summary":"OpenClaw < 2026.3.8 - Sender Allowlist Bypass in Microsoft Teams Plugin via Route Allowlist Configuration","details":"OpenClaw before 2026.3.8 contains a sender allowlist bypass vulnerability in its Microsoft Teams plugin that allows unauthorized senders to bypass intended authorization checks. When a team/channel route allowlist is configured with an empty groupAllowFrom parameter, the message handler synthesizes wildcard sender authorization, permitting any sender in the matched team/channel to trigger replies in allowlisted Teams routes.","published":"2026-03-31T11:17:21.379Z","modified":"2026-08-07T11:49:19.957823153Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"openclaw","fixedVersion":"2026.3.8"}],"fix":{"url":"https://github.com/openclaw/openclaw/commit/88aee9161e0e6d32e810a25711e32a808a1777b2","label":"openclaw/openclaw@88aee91"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34506.json"},{"type":"ADVISORY","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-g7cr-9h7q-4qxq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34506"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openclaw-sender-allowlist-bypass-in-microsoft-teams-plugin-via-route-allowlist-configuration"},{"type":"FIX","url":"https://github.com/openclaw/openclaw/commit/88aee9161e0e6d32e810a25711e32a808a1777b2"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:49:19.957823153Z"}}