Jenkins Script Security Plugin: Missing permission checks allow enumeration of pending and approved classpaths (CVE-2026-42519) | HOL Guard CVE

Medium · CVSS 4.3CVE-2026-42519GHSA-P334-GFHQ-C7W6

Jenkins Script Security Plugin: Missing permission checks allow enumeration of pending and approved classpaths

Answer in brief

CVE-2026-42519 records a Medium severity (CVSS 4.3) vulnerability in Jenkins Script Security Plugin: Missing permission checks allow enumeration of pending and approved classpaths. The current sources do not mark it as known exploited. The current feed maps org.jenkins-ci.plugins:script-security (maven). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Apr 29, 2026Updated Sep 10, 2026Source checked Sep 10, 2026First seen by HOL Sep 10, 2026Material review Sep 10, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 4.3
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 4.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps org.jenkins-ci.plugins:script-security (maven). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
org.jenkins-ci.plugins:script-securitymaven	>=0 <1402.v94c9ce464861	1402.v94c9ce464861

Recommended response

Check inventory. Check lockfiles and deployed manifests for org.jenkins-ci.plugins:script-security.
Review the reported fix. Update org.jenkins-ci.plugins:script-security to 1402.v94c9ce464861 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Apr 29, 2026
Evidence: source:osv:source_dates:source-dates:record
Source modified
Sep 10, 2026
Evidence: source:osv:source_dates:source-dates:record
First seen by HOL
Sep 10, 2026

Sources and claim methodology

Upstream source description

Jenkins Script Security Plugin versions 1399.ve6a_66547f6e1 and earlier do not perform a permission check in an HTTP endpoint. This allows attackers with Overall/Read permission to enumerate pending and approved Script Security classpaths. Script Security Plugin 1402.v94c9ce464861 requires Overall/Administer permission to enumerate pending and approved Script Security classpaths.

Quoted source text, attributed separately from HOL analysis.