🛡️ CVE-2026-42519 — script-security

🟡 CVSS 4.3 — Medium ✅ No Known Exploit CWE-862 NVD
4.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability none.

Weakness class

CVE-2026-42519 is classified as CWE-862: Missing Authorization. No authorisation check is performed before carrying out a restricted action.

Affected software

CVE-2026-42519 is recorded against 2 packages.

  • org.jenkins-ci.plugins:script-security (fixed in 1402.v94c9ce464861)
  • script-security (fixed in 1399.ve6a_66547f6e1)

Timeline and source

Published on 29 April 2026 and last revised on 8 May 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

nvd.nist.gov (Advisory)
github.com (Package)
www.jenkins.io (Web)

Details

Severity Medium
CVSS Score 4.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE CWE-862
Public Exploit ✅ No
Source NVD
Published 2026-04-29
Updated 2026-08-12
Modified 2026-05-08
Fix URL N/A

Affected Packages

Software From version Fixed in
org.jenkins-ci.plugins:script-security — 1402.v94c9ce464861
script-security — 1399.ve6a_66547f6e1

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