CVE-2026-40037 (GCVE-0-2026-40037)

Vulnerability from cvelistv5 – Published: 2026-04-08 21:35 – Updated: 2026-09-24 14:17 X_Open Source
VLAI
Title
OpenClaw < 2026.3.31 - Unsafe Request Body Replay via fetchWithSsrFGuard Cross-Origin Redirects
Summary
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.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-09 14:40 UTC
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
Impacted products
Vendor Product Version CPE status
OpenClaw OpenClaw Affected: 0 , < 2026.4.8 (semver)
Unaffected: 2026.4.8 (semver)
    cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Create a notification for this product.
Date Public
2026-04-08 00:00
Credits
RaaX (@BG0ECV)
Show details on NVD website
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