{"id":"GHSA-qx8j-g322-qj6m","summary":"OpenClaw: `fetchWithSsrFGuard` replays unsafe request bodies across cross-origin redirects","details":"## Impact\n\n`fetchWithSsrFGuard` replays unsafe request bodies across cross-origin redirects.\n\nA guarded fetch could resend unsafe request bodies or headers when following cross-origin redirects.\n\nOpenClaw is a user-controlled local assistant. This advisory is scoped to the OpenClaw trust model and does not assume a multi-tenant service boundary.\n\n## Affected Packages / Versions\n\n- Package: `openclaw` (npm)\n- Affected versions: `\u003c2026.3.31`\n- Patched versions: `2026.4.8`\n\n## Fix\n\nThe issue was fixed on `main` and is available in the patched npm version listed above. The verified fixed tree is commit `d7c3210cd6f5fdfdc1beff4c9541673e814354d5`.\n\n## Verification\n\nThe fix was re-checked against `main` before publication, including targeted regression tests for the affected security boundary.\n\n## Credits\n\nThanks @BG0ECV for reporting.","aliases":["CVE-2026-40037"],"modified":"2026-04-10T20:42:18.054990Z","published":"2026-04-09T17:37:08Z","database_specific":{"nvd_published_at":null,"cwe_ids":["CWE-345"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2026-04-09T17:37:08Z"},"references":[{"type":"WEB","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-qx8j-g322-qj6m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40037"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5"},{"type":"PACKAGE","url":"https://github.com/openclaw/openclaw"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/openclaw-unsafe-request-body-replay-via-fetchwithssrfguard-cross-origin-redirects"}],"affected":[{"package":{"name":"openclaw","ecosystem":"npm","purl":"pkg:npm/openclaw"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.4.8"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-qx8j-g322-qj6m/GHSA-qx8j-g322-qj6m.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"}]}