CVE-2026-41362

OpenClaw 2026.2.19 through 2026.3.30 - Webhook Replay Dedupe Cache Event Suppression via Shared Authentication

State: Published
Severity: 2.3 Low
Published: Apr 27, 2026
Updated: May 26, 2026
Reserved: Apr 20, 2026

Description

OpenClaw versions 2026.2.19 before 2026.3.31 contain an improper cache isolation vulnerability in the Zalo webhook replay-dedupe mechanism that is shared across authenticated webhook targets. Attackers controlling one authenticated Zalo webhook path in multi-account deployments can suppress legitimate events on different accounts by matching event_name and message_id parameters.

Scores

CVSS	Score	Vector	Source
4.0	2.3 Low	CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N	VulnCheck
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L	VulnCheck

Weaknesses

CWE-668 Exposure of Resource to Wrong Sphere

Affected Products

Product	Versions
OpenClawOpenClaw	2026.2.19 to before 2026.3.31Affected 2026.3.31Not affected

References

GitHub Security Advisory (GHSA-fqrj-m88p-qf3v)vendor-advisory
Patch Commitpatch
Patch Commitpatch
VulnCheck Advisory: OpenClaw 2026.2.19 < 2026.3.31 - Webhook Replay Dedupe Cache Event Suppression via Shared Authenticationthird-party-advisory

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