CVE-2026-41402
OpenClaw < 2026.3.31 - Webhook Replay Cache Cross-Target messageId Scope Bypass
- State
- Published
- Severity
- 2.3 Low
- Published
- Apr 28, 2026
- Updated
- Apr 29, 2026
- Reserved
- Apr 20, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.3 Low | CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 4.2 Medium | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-706 Use of Incorrectly-Resolved Name or Reference
Affected Products
| Product | Versions |
|---|---|
OpenClawOpenClaw |
|
References
- GitHub Security Advisory (GHSA-hhq4-97c2-p447)vendor-advisory
- Patch Commitpatch
- VulnCheck Advisory: OpenClaw < 2026.3.31 - Webhook Replay Cache Cross-Target messageId Scope Bypassthird-party-advisory
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