CVE-2026-40037: Openclaw

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Openclaw Openclaw: before 2026.4.8 (fixed in 2026.4.8)

Published 2026-04-08. Last modified 2026-07-24.