{"cve":"CVE-2026-34506","nvd":{"published":"2026-03-31T12:16:30.440","modified":"2026-07-24T22:10:00.140","status":"Analyzed","description":"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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","score":2.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","score":4.3},"cwes":["CWE-863"],"references":["https://github.com/openclaw/openclaw/commit/88aee9161e0e6d32e810a25711e32a808a1777b2","https://github.com/openclaw/openclaw/security/advisories/GHSA-g7cr-9h7q-4qxq","https://www.vulncheck.com/advisories/openclaw-sender-allowlist-bypass-in-microsoft-teams-plugin-via-route-allowlist-configuration"],"products":["openclaw:openclaw"],"source":"nvd","synced_at":"2026-10-19T22:28:18.033120106+00:00"},"epss":{"cve":"CVE-2026-34506","score":0.00272,"percentile":0.19597,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-g7cr-9h7q-4qxq","url":"https://osv.dev/vulnerability/GHSA-g7cr-9h7q-4qxq","summary":"OpenClaw's MS Teams sender allowlist bypass when route allowlist is configured and sender allowlist is empty","modified":"2026-04-06T23:12:29.814086Z","packages":[{"ecosystem":"npm","name":"openclaw","purl":"pkg:npm/openclaw","ranges":["<2026.3.8"],"fixed":["2026.3.8"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}