{"id":"GHSA-h97f-6pqj-q452","aliases":[],"url":"https://o3.security/vulnerability/GHSA-h97f-6pqj-q452","summary":"OpenClaw has a IPv6 multicast SSRF classifier bypass","details":"### Summary\nOpenClaw's SSRF IP classifier did not treat IPv6 multicast literals (`ff00::/8`) as blocked/private-internal. This allowed literal multicast hosts to pass SSRF preflight checks.\n\n### Impact\nA bypass in address classification existed for IPv6 multicast literals. OpenClaw's network fetch/navigation paths are constrained to HTTP/HTTPS and this was triaged as low-severity defense-in-depth hardening.\n\n### Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected versions: `<= 2026.2.24`\n- Patched versions: `>= 2026.2.25` \n\n### Technical Details\nThe IPv6 private/internal range set omitted `multicast`, so addresses like `ff02::1` and `ff05::1:3` were not classified as blocked by the shared SSRF classifier.\n\n### Fix Commit(s)\n- `baf656bc6fd7f83b6033e6dbc2548ec75028641f`\n\n### Release Process Note\n`patched_versions` is pre-set to the planned next npm release (`2026.2.25`). Once that release is published on npm, the advisory is published.\n\nOpenClaw thanks @zpbrent for reporting.","published":"2026-03-03T21:48:55Z","modified":"2026-03-04T15:15:11.125567Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"openclaw","fixedVersion":"2026.2.25"}],"fix":{"url":"https://github.com/openclaw/openclaw/commit/baf656bc6fd7f83b6033e6dbc2548ec75028641f","label":"openclaw/openclaw@baf656b"},"references":[{"type":"WEB","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-h97f-6pqj-q452"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/commit/baf656bc6fd7f83b6033e6dbc2548ec75028641f"},{"type":"PACKAGE","url":"https://github.com/openclaw/openclaw"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-03-04T15:15:11.125567Z"}}