Openclaw cli: OpenClaw: Zalo replay dedupe cache could suppress events across authenticated webhook targets (CVE-2026-41362)
Description
OpenClaw CLI versions from 2026.2.19 up to but not including 2026.3.31 have a vulnerability in the Zalo webhook replay-dedupe cache. The cache was shared too broadly across authenticated webhook targets in multi-account deployments, allowing a replay event on one account to suppress legitimate events on another account if event_name and message_id matched. This issue affects availability but does not allow cross-account authentication or data access. The vulnerability was fixed in version 2026.3.31 with further hardening in 2026.4.1.
CVSS v4.0
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Before OpenClaw 2026.3.31, the Zalo webhook replay-dedupe cache was shared across authenticated webhook targets and keyed too broadly. In multi-account gateway deployments, a replay event seen on one account could suppress legitimate events on another account if the event_name and message_id matched. This caused silent message suppression, impacting availability but not authentication or data confidentiality. The issue was addressed by scoping the replay dedupe cache per target and further hardening to scope it by path and account in versions 2026.3.31 and 2026.4.1.
Potential Impact
An attacker controlling one authenticated Zalo webhook path in a multi-account gateway deployment could cause silent suppression of legitimate webhook events on a different Zalo account sharing the same gateway. This results in an availability impact by preventing some events from being processed or noticed. There is no impact on cross-account authentication or data access.
Mitigation Recommendations
A patch is available and was released in OpenClaw version 2026.3.31, with additional hardening in 2026.4.1. Users should upgrade to version 2026.3.31 or later to remediate this issue. No additional mitigation actions are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BREW-openclaw-cli-CVE-2026-41362
- Osv Schema Version
- 1.7.3
- Ecosystems
- ["Homebrew"]
- Cvss Version
- 4.0
Threat ID: 6ac245a112601ec6a3165d89
Added to database: 10/04/2026, 12:25:05 UTC
Last enriched: 10/04/2026, 12:48:37 UTC
Last updated: 10/04/2026, 16:08:38 UTC
Views: 2
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.