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CVE-2026-41402

OpenClaw < 2026.3.31 - Webhook Replay Cache Cross-Target messageId Scope Bypass

Published: Apr 28, 2026Updated: Apr 28, 2026 Sources: CVE List NVD
NVD MITRE
4.2CVSS
MEDIUM

OpenClaw before 2026.3.31 contains a scope bypass vulnerability in webhook replay cache deduplication that allows authenticated attackers to replay messages across sibling targets using the same messageId. Attackers can exploit overly broad cache keying to bypass replay protection and deliver duplicate webhook messages to unintended targets.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:HPR:LUI:NS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None

Weaknesses

CWE-706

Affected Products

OpenClaw
OpenClaw

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://github.com/openclaw/openclaw/security/advisories/GHSA-hhq4-97c2-p447
github.com
https://github.com/openclaw/openclaw/commit/4d038bb242c11f39e45f6a4bde400e5fd42e4ebf
github.com
https://www.vulncheck.com/advisories/openclaw-webhook-replay-cache-cross-target-messageid-scope-bypass
vulncheck.com

Timeline

Published
Apr 28, 2026
Last Updated
Apr 28, 2026

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