CVE-2026-40037 — MEDIUM (6.5)

Q: How severe is CVE-2026-40037?

CVE-2026-40037 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-40037?

Check the references section above for vendor advisories and patch information. Affected products include: Openclaw Openclaw.

Vulnerability 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.

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Openclaw	Openclaw	< 2026.4.8

Related Weaknesses (CWE)

CWE-601

References

https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e8143Patch
https://github.com/openclaw/openclaw/security/advisories/GHSA-qx8j-g322-qj6mVendor Advisory
https://www.vulncheck.com/advisories/openclaw-unsafe-request-body-replay-via-fetThird Party Advisory

FAQ

What is CVE-2026-40037?

CVE-2026-40037 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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. Attacke...

How severe is CVE-2026-40037?

CVE-2026-40037 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-40037?

Check the references section above for vendor advisories and patch information. Affected products include: Openclaw Openclaw.