CVE-2026-40037

MEDIUM

OpenClaw < 2026.3.31 - Unsafe Request Body Replay via fetchWithSsrFGuard Cross-Origin Redirects

Title source: cna

Description

OpenClaw before 2026.3.31 (patched in 2026.4.8) contains a request body replay vulnerability in fetchWithSsrFGuard that allows unsafe request bodies to be resent across cross-origin redirects. Attackers can exploit this by triggering redirects to exfiltrate sensitive request data or headers to unintended origins.

References (3)

[Third Party Advisory] https://github.com/openclaw/openclaw/security/advisories/GHSA-qx8j-g322-qj6m

[Patch] https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5

View Patch ZIP pw:eip

[Third Party Advisory] https://www.vulncheck.com/advisories/openclaw-unsafe-request-body-replay-via-fetchwithssrfguard-cross-origin-redirects

Scores

CVSS v3 6.5

EPSS 0.0003

EPSS Percentile 10.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Details

CWE

CWE-601

Status published

Products (4)

npm/openclaw 0 - 2026.4.8npm

OpenClaw/OpenClaw < 2026.3.31

openclaw/openclaw < 2026.4.8

OpenClaw/OpenClaw 2026.4.8

Published Apr 08, 2026

Tracked Since Apr 09, 2026