GitHub Advisoryadvisory · npm

GHSA-qx8j-g322-qj6m OpenClaw: `fetchWithSsrFGuard` replays unsafe request bodies across cross-origin redirects

HIGH Published 2026-04-09 Modified 2026-04-10 Official page ↗
Aliases
CVE-2026-40037
Ecosystem
npm
Packages
openclaw
Severity
High
CVSS vector
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
Weaknesses
CWE-345
Reviewed
2026-04-09

Affected packages

• npm openclaw: < 2026.4.8 → fixed in 2026.4.8

Description

Impact `fetchWithSsrFGuard` replays unsafe request bodies across cross-origin redirects. A guarded fetch could resend unsafe request bodies or headers when following cross-origin redirects. OpenClaw is a user-controlled local assistant. This advisory is scoped to the OpenClaw trust model and does not assume a multi-tenant service boundary. Affected Packages / Versions • Package: `openclaw` (npm) • Affected versions: `<2026.3.31` • Patched versions: `2026.4.8` Fix The issue was fixed on `main` and is available in the patched npm version listed above. The verified fixed tree is commit `d7c3210cd6f5fdfdc1beff4c9541673e814354d5`. Verification The fix was re-checked against `main` before publication, including targeted regression tests for the affected security boundary. Credits Thanks @BG0ECV for reporting.

Related

Alias · CVE (1)

  • CVE-2026-40037 OpenClaw before 2026.4.8 contains a request body replay vulnerability in fetchWithSsrFGuard that allows unsafe request bodies to be resent… vulnerability

Weakness · CWE (1)

  • CWE-345 Insufficient Verification of Data Authenticity weakness

References