CVE-2026-41362Network attack vector

Authenticated event suppression via shared replay cache

Published Apr 27, 2026 · Updated Apr 27, 2026

Improper cache isolation in OpenClaw 2026.2.19 before 2026.3.31 allows remote authenticated users to suppress Zalo webhook events. The replay check builds one global cache key from event_name and message_id without including the authenticated target, path, or account. Control of one authenticated Zalo webhook path in a multi-account gateway is required; matching keys silently drop another account's legitimate event without granting data access.

CVSS severity2.3
Low
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper cache isolation in OpenClaw 2026.2.19 before 2026.3.31 allows remote authenticated users to suppress Zalo webhook events. The replay check builds one global cache key from event_name and message_id without including the authenticated target, path, or account. Control of one authenticated Zalo webhook path in a multi-account gateway is required; matching keys silently drop another account's legitimate event without granting data access.

The record

CVE
CVE-2026-41362
Published
Apr 27, 2026
Updated
Apr 27, 2026
Vendor
OpenClaw Foundation
Product
OpenClaw
Classifications
CWE-668, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2026.2.19 <2026.3.31

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenClaw Foundation · OpenClawversion=2026.2.19 <2026.3.31

Published CVSS scores

2.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-668Exposure of Resource to Wrong Sphere
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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