CVE-2026-41362: OpenClaw 2026.2.19 through 2026.3.30 - Webhook Replay Dedupe Cache Event Suppression via Shared Authentication

Published Apr 27, 2026
·
Updated

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 eventname and messageid parameters.

Affected Software

2 affected components
OpenClaw OpenClaw>=2026.2.19<2026.3.31
OpenClaw Openclaw Node.js>=2026.2.19<2026.3.31

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade OpenClaw to a version that resolves this vulnerability.

    Fixed in 2026.3.31

Event History

Apr 27, 2026
CVE Published
via MITRE·11:24 PM
Data Sourced
via MITRE·11:24 PM
DescriptionSeverityWeakness
Apr 28, 2026
Data Sourced
via NVD·12:16 AM
RemedyDescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-41362?

CVE-2026-41362 is a medium-severity vulnerability due to improper cache isolation affecting authenticated webhook targets.

2

How do I fix CVE-2026-41362?

To fix CVE-2026-41362, upgrade OpenClaw to version 2026.3.31 or later.

3

What versions are affected by CVE-2026-41362?

CVE-2026-41362 affects OpenClaw versions from 2026.2.19 up to, but not including, 2026.3.31.

4

What is the impact of CVE-2026-41362?

The impact of CVE-2026-41362 includes potential unauthorized access to event suppression via webhook replay due to shared authentication.

5

Is CVE-2026-41362 exploitable remotely?

Yes, CVE-2026-41362 is exploitable remotely if an attacker can access the affected webhook endpoints.

Contact

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