{"id":"CVE-2026-35626","aliases":["GHSA-rm59-992w-x2mv"],"url":"https://o3.security/vulnerability/CVE-2026-35626","summary":"OpenClaw < 2026.3.22 - Unauthenticated Resource Exhaustion via Voice Call Webhook","details":"## Summary\nVoice Call webhook handling buffered request bodies before provider signature checks, enabling bounded unauthenticated resource exhaustion.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected: < 2026.3.22\n- Fixed: >= 2026.3.22\n- Latest released tag checked: `v2026.3.23-2` (`630f1479c44f78484dfa21bb407cbe6f171dac87`)\n- Latest published npm version checked: `2026.3.23-2`\n\n## Fix Commit(s)\n- `651dc7450b68a5396a009db78ef9382633707ead`\n\n## Release Status\nThe fix shipped in `v2026.3.22` and remains present in `v2026.3.23` and `v2026.3.23-2`.\n\n## Code-Level Confirmation\n- extensions/voice-call/src/webhook.ts now enforces header gating and shared pre-auth body caps before reading attacker-controlled request bodies.\n- extensions/voice-call/src/webhook.test.ts ships regression coverage for missing-signature, oversize, and timeout pre-auth webhook cases.\n\nOpenClaw thanks @SEORY0 for reporting.","published":"2026-04-09T21:26:58.441Z","modified":"2026-08-17T03:55:01.781546388Z","cvss":null,"epss":{"score":0.00494,"percentile":0.41287,"asOf":"2026-09-17"},"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-2026-35626.json"},{"type":"ADVISORY","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-rm59-992w-x2mv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35626"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openclaw-unauthenticated-resource-exhaustion-via-voice-call-webhook"},{"type":"FIX","url":"https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87"},{"type":"FIX","url":"https://github.com/openclaw/openclaw/commit/651dc7450b68a5396a009db78ef9382633707ead"},{"type":"PACKAGE","url":"https://github.com/openclaw/openclaw"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-17T03:55:01.781546388Z"}}