CVE-2026-41402

MEDIUM

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

Title source: cna

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.

References (3)

[Vendor Advisory] https://github.com/openclaw/openclaw/security/advisories/GHSA-hhq4-97c2-p447

[Patch] https://github.com/openclaw/openclaw/commit/4d038bb242c11f39e45f6a4bde400e5fd42e4ebf

View Patch ZIP pw:eip

[Third Party Advisory] https://www.vulncheck.com/advisories/openclaw-webhook-replay-cache-cross-target-messageid-scope-bypass

Scores

CVSS v3 4.2

EPSS 0.0003

EPSS Percentile 8.0%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-706

Status published

Products (2)

OpenClaw/OpenClaw < 2026.3.31

OpenClaw/OpenClaw 2026.3.31

Published Apr 28, 2026

Tracked Since Apr 29, 2026