CVE-2026-42428Network attack vector

Code execution via unverified plugin archives

Published Apr 28, 2026 · Updated Apr 28, 2026

Missing integrity verification in OpenClaw before 2026.4.8 allows attackers to substitute tampered plugin archives during installation. The plugin installer accepts a downloaded archive without comparing its content against trusted digest metadata. A user must initiate installation, after which substituted plugin code runs with the permissions of the OpenClaw process.

CVSS severityUnavailable
Unscored
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing integrity verification in OpenClaw before 2026.4.8 allows attackers to substitute tampered plugin archives during installation. The plugin installer accepts a downloaded archive without comparing its content against trusted digest metadata. A user must initiate installation, after which substituted plugin code runs with the permissions of the OpenClaw process.

The record

CVE
CVE-2026-42428
Published
Apr 28, 2026
Updated
Apr 28, 2026
Vendor
OpenClaw Foundation
Product
OpenClaw
Classifications
T1195.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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=0 <2026.4.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenClaw Foundation · OpenClawversion=0 <2026.4.8

Published CVSS scores

No CVSS assessment is available in this record.

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1195.002Compromise Software Supply Chain: Software Supply Chain

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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