CVE-2026-40037

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 v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5	Patch
https://github.com/openclaw/openclaw/security/advisories/GHSA-qx8j-g322-qj6m	Vendor Advisory
https://www.vulncheck.com/advisories/openclaw-unsafe-request-body-replay-via-fetchwithssrfguard-cross-origin-redirects	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

History

13 Apr 2026, 20:27

Type	Values Removed	Values Added
References	~~() https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5 -~~	() https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5 - Patch
References	~~() https://github.com/openclaw/openclaw/security/advisories/GHSA-qx8j-g322-qj6m -~~	() https://github.com/openclaw/openclaw/security/advisories/GHSA-qx8j-g322-qj6m - Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/openclaw-unsafe-request-body-replay-via-fetchwithssrfguard-cross-origin-redirects -~~	() https://www.vulncheck.com/advisories/openclaw-unsafe-request-body-replay-via-fetchwithssrfguard-cross-origin-redirects - Third Party Advisory
CPE		cpe:2.3:a:openclaw:openclaw::::::node.js::*
First Time		Openclaw openclaw Openclaw

08 Apr 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-08 22:16

Updated : 2026-04-13 20:27

NVD link : CVE-2026-40037

Mitre link : CVE-2026-40037

CVE.ORG link : CVE-2026-40037

JSON object : View

Products Affected

openclaw

openclaw

CWE

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

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