CVE-2026-40037
Published:April 08, 2026
Updated:April 25, 2026
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 Packages
https://github.com/openclaw/openclaw.git (GITHUB):
Affected version(s) >=v0.1.0 <v2026.4.8Fix Suggestion:
Update to version v2026.4.8openclaw (NPM):
Affected version(s) >=0.0.1 <2026.4.8Fix Suggestion:
Update to version 2026.4.8openclaw (NPM):
Affected version(s) >=0.0.1 <2026.4.8Fix Suggestion:
Update to version 2026.4.8Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
EPSS
Base Score:
0.03
