CVE-2026-40037

Medium

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.

SeverityMedium

CVSS6.5

Exploit probability—

ProductOpenclaw

PublishedApr 8, 2026

First seenApr 8, 2026

Weakness typeCWE-601Open redirect

How to fix

Update

openclaw openclaw2026.4.8 or later
openclaw2026.4.8 or later

Patches

github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5

Vendor advisories

github.com/openclaw/openclaw/security/advisories/GHSA-qx8j-g322-qj6m

Affected products

Product	Affected versions	Fixed in
openclaw openclaw	v < 2026.4.8	2026.4.8
openclawnpm	v < 2026.4.8	2026.4.8

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