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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.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-53439 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-53439

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-53439 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-53439

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.