{"cve":"CVE-2026-41299","nvd":{"published":"2026-04-21T00:16:30.517","modified":"2026-06-17T10:46:27.983","status":"Analyzed","description":"OpenClaw before 2026.3.28 contains an authorization bypass vulnerability in the chat.send gateway method where ACP-only provenance fields are gated by self-declared client metadata from WebSocket handshake rather than verified authorization state. Authenticated operator clients can spoof ACP identity labels and inject reserved provenance fields intended only for the ACP bridge by manipulating client metadata during connection.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N","score":7.1},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N","score":7.1},"cwes":["CWE-807"],"references":["https://github.com/openclaw/openclaw/security/advisories/GHSA-6xg4-82hv-cp6f","https://www.vulncheck.com/advisories/openclaw-client-identity-spoofing-in-chat-send-gateway-provenance-guard"],"products":["openclaw:openclaw"],"source":"nvd","synced_at":"2026-10-19T22:30:49.762551342+00:00"},"epss":{"cve":"CVE-2026-41299","score":0.00203,"percentile":0.10266,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-6xg4-82hv-cp6f","url":"https://osv.dev/vulnerability/GHSA-6xg4-82hv-cp6f","summary":"OpenClaw: Gateway chat.send ACP-only provenance guard could be bypassed by client identity spoofing","modified":"2026-04-21T00:11:25.118793Z","packages":[{"ecosystem":"npm","name":"openclaw","purl":"pkg:npm/openclaw","ranges":["<2026.3.28"],"fixed":["2026.3.28"]}]}],"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."]}