CVE-2026-41402

low

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

Advisories
More

https://www.vulncheck.com/advisories/openclaw-webhook-replay-cache-cross-target-messageid-scope-bypass

https://github.com/openclaw/openclaw/security/advisories/GHSA-hhq4-97c2-p447

https://github.com/openclaw/openclaw/commit/4d038bb242c11f39e45f6a4bde400e5fd42e4ebf

Details

Source: Mitre, NVD

Published: 2026-04-28

Updated: 2026-04-30

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 5.4

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

Severity: Medium

CVSS v4

Base Score: 2.3

Vector: 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

Severity: Low

EPSS

EPSS: 0.00027