{"id":"CVE-2026-35656","aliases":["GHSA-844j-xrrq-wgh4"],"url":"https://o3.security/vulnerability/CVE-2026-35656","summary":"OpenClaw < 2026.3.22 - XFF Loopback Spoofing Bypass in Canvas Authentication and Rate Limiter","details":"OpenClaw before 2026.3.22 contains an authentication bypass vulnerability in the X-Forwarded-For header processing when trustedProxies is configured, allowing attackers to spoof loopback hops. Remote attackers can inject forged forwarding headers to bypass canvas authentication and rate-limiting protections by masquerading as loopback clients.","published":"2026-04-10T16:03:18.659Z","modified":"2026-08-09T03:46:39.795689939Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"openclaw","fixedVersion":"2026.3.22"}],"fix":{"url":"https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87","label":"openclaw/openclaw@630f147"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35656.json"},{"type":"ADVISORY","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-844j-xrrq-wgh4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35656"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openclaw-xff-loopback-spoofing-bypass-in-canvas-authentication-and-rate-limiter"},{"type":"FIX","url":"https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87"},{"type":"FIX","url":"https://github.com/openclaw/openclaw/commit/fc2d29ea926f47c428c556e92ec981441228d2a4"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-09T03:46:39.795689939Z"}}