CVE-2026-41402 | THREATINT

Description

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.

PUBLISHED Reserved 2026-04-20 | Published 2026-04-28 | Updated 2026-04-29 | Assigner VulnCheck

LOW: 2.3CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

MEDIUM: 4.2CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

Problem types

CWE-706: Use of Incorrectly-Resolved Name or Reference

Product status

Default status

unaffected

Any version before 2026.3.31

affected

2026.3.31 (semver)

unaffected

Credits

smaeljaish771 reporter

KeenSecurityLab finder

References

github.com/...enclaw/security/advisories/GHSA-hhq4-97c2-p447 (GitHub Security Advisory (GHSA-hhq4-97c2-p447)) vendor-advisory

github.com/...ommit/4d038bb242c11f39e45f6a4bde400e5fd42e4ebf (Patch Commit) patch

www.vulncheck.com/...che-cross-target-messageid-scope-bypass (VulnCheck Advisory: OpenClaw < 2026.3.31 - Webhook Replay Cache Cross-Target messageId Scope Bypass) third-party-advisory

cve.org (CVE-2026-41402)

nvd.nist.gov (CVE-2026-41402)

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