{"id":"GHSA-rm59-992w-x2mv","summary":"OpenClaw is vulnerable to unauthenticated resource exhaustion through its voice call webhook handling","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: \u003c 2026.3.22\n- Fixed: \u003e= 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.","aliases":["CVE-2026-35626"],"modified":"2026-04-10T20:42:17.421105Z","published":"2026-03-26T19:50:41Z","database_specific":{"github_reviewed_at":"2026-03-26T19:50:41Z","nvd_published_at":null,"cwe_ids":["CWE-400"],"severity":"MODERATE","github_reviewed":true},"references":[{"type":"WEB","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":"WEB","url":"https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/commit/651dc7450b68a5396a009db78ef9382633707ead"},{"type":"PACKAGE","url":"https://github.com/openclaw/openclaw"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/openclaw-unauthenticated-resource-exhaustion-via-voice-call-webhook"}],"affected":[{"package":{"name":"openclaw","ecosystem":"npm","purl":"pkg:npm/openclaw"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.3.22"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-rm59-992w-x2mv/GHSA-rm59-992w-x2mv.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U"}]}