PatchSiren cyber security CVE debrief

CVE-2026-53439 Jenkins Project CVE debrief

CVE-2026-53439 is a medium-severity vulnerability in Jenkins. The issue allows attackers with Overall/Read permission to determine other users' configured timezone and enumerate view names of other users' 'My Views'. This vulnerability affects Jenkins 2.567 and earlier, as well as LTS 2.555.2 and earlier.

Vendor: Jenkins Project
Product: Jenkins
CVSS: MEDIUM 4.3
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-06-10
Original CVE updated: 2026-06-11
Advisory published: 2026-06-10
Advisory updated: 2026-06-11

Who should care

Administrators and users of Jenkins 2.567 and earlier, LTS 2.555.2 and earlier should be aware of this vulnerability and take necessary actions to mitigate it.

Technical summary

The vulnerability has a CVSS score of 4.3 and is classified as CWE-862. It was published on [cvePublishedAt] and modified on [cveModifiedAt].

Defensive priority

MEDIUM

Recommended defensive actions

Update Jenkins to version 2.568 or later, or LTS 2.555.3 or later.
Restrict Overall/Read permission to trusted users.

Evidence notes

The vulnerability is caused by missing permission checks in Jenkins.

Official resources

CVE-2026-53439 CVE record
CVE.org
CVE-2026-53439 NVD detail
NVD
Source item URL
nvd_modified
Mitigation or vendor reference
[email protected] - Vendor Advisory

CVE-2026-53439 was published on 2026-06-10T14:16:36.893Z and modified on 2026-06-11T13:06:36.427Z.