OpenClaw: fetch-guard forwards custom authorization headers across cross-origin redirects
🔗 CVE IDs covered (1)
📋 Description
OpenClaw's fetchWithSsrFGuard(...) followed cross-origin redirects while preserving arbitrary caller-supplied headers except for a narrow denylist (Authorization, Proxy-Authorization, Cookie, Cookie2). This allowed custom authorization headers such as X-Api-Key, Private-Token, and similar sensitive headers to be forwarded to a different origin after a redirect.
The fix switches cross-origin redirect handling from a narrow sensitive-header denylist to a safe-header allowlist, so only benign headers such as content negotiation and cache validators survive an origin change.
Affected Packages / Versions
- Package:
openclaw(npm) - Affected versions:
<= 2026.3.2 - Patched version:
2026.3.7 - Latest published npm version at patch time:
2026.3.2
Impact
A remote service that could trigger a redirect across origins could receive custom authorization credentials attached by OpenClaw callers. This can expose API keys, bearer-style custom headers, or private token headers intended only for the original destination.
Fix Commit(s)
46715371b0612a6f9114dffd1466941ac476cef5
Verification
pnpm checkpassedpnpm test:fastpassed- Focused redirect regression tests passed
pnpm exec vitest run --config vitest.gateway.config.tsstill has unrelated current-mainfailures insrc/gateway/server-channels.test.tsandsrc/gateway/server-methods/agents-mutate.test.ts
Release Process Note
npm 2026.3.7 was published on March 8, 2026. This advisory is fixed in the released package.
Thanks @Rickidevs for reporting.
🎯 Affected products1
- npm/openclaw:<= 2026.3.2
🔗 References (6)
- https://github.com/openclaw/openclaw/security/advisories/GHSA-6mgf-v5j7-45cr
- https://github.com/openclaw/openclaw/commit/46715371b0612a6f9114dffd1466941ac476cef5
- https://github.com/openclaw/openclaw/releases/tag/v2026.3.7
- https://nvd.nist.gov/vuln/detail/CVE-2026-32913
- https://vulncheck.com/advisories/openclaw-mar-custom-authorization-header-leakage-via-cross-origin-redirects
- https://github.com/advisories/GHSA-6mgf-v5j7-45cr