CVE-2026-42603Public exploitNetwork attack vector

Remote code execution via privileged fork checkout

Published May 11, 2026 · Updated May 11, 2026

Code injection in OWASP Bug Logging Tool before 2.1.2 allows remote attackers to execute code through a crafted pull request. The pre-commit-fix.yaml workflow uses pull_request_target, checks out an attacker's fork, and executes its code with a write-enabled token. Exploitation requires the privileged workflow to process the pull request, after which the injected code can modify repository content.

CVSS severity8.8
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in OWASP Bug Logging Tool before 2.1.2 allows remote attackers to execute code through a crafted pull request. The pre-commit-fix.yaml workflow uses pull_request_target, checks out an attacker's fork, and executes its code with a write-enabled token. Exploitation requires the privileged workflow to process the pull request, after which the injected code can modify repository content.

The record

CVE
CVE-2026-42603
Published
May 11, 2026
Updated
May 11, 2026
Vendor
OWASP ModSecurity
Product
OWASP Bug Logging Tool
Classifications
CWE-95, CWE-94, T1195.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 11, 2026CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=< 2.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OWASP ModSecurity · OWASP Bug Logging Toolversion=< 2.1.2

Published CVSS scores

8.8GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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 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 exploitPublished

Weakness, pattern, technique

CWE-95Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
CWE-94Improper Control of Generation of Code ('Code Injection')
T1195.002Compromise Software Supply Chain

Public exploit references

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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