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CVE-2026-70439 Jenkins Project CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-05T18:17:13.713Z and has not been modified since then. CVE-2026-70439 is a medium-severity vulnerability in Jenkins XML Job to Job DSL Plugin versions 0.1.13 and earlier. The plugin fails to perform necessary permission checks, enabling attackers without appropriate permissions to invoke the conversion functionality. This issue has been publicly disclosed and CVE and NVD entries have been created/updated. Administrators and users of Jenkins instances with the XML Job to Job DSL Plugin installed should be aware of this vulnerability. Due to the medium severity and potential for unauthorized use of conversion functionality, attention from Jenkins administrators and security teams is warranted.

Vendor
Jenkins Project
Product
Jenkins XML Job to Job DSL Plugin
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-05
Original CVE updated
2026-08-31
Advisory published
2026-08-05
Advisory updated
2026-08-31

Who should care

Administrators and users of Jenkins instances with the XML Job to Job DSL Plugin installed should be aware of this vulnerability. Due to the medium severity and potential for unauthorized use of conversion functionality, attention from Jenkins administrators and security teams is warranted.

Technical summary

CVE-2026-70439 is a medium-severity vulnerability in Jenkins XML Job to Job DSL Plugin versions 0.1.13 and earlier. The plugin fails to perform necessary permission checks, enabling attackers without appropriate permissions to invoke the conversion functionality. This issue has been publicly disclosed and CVE and NVD entries have been created/updated.

Defensive priority

Medium-severity vulnerability in Jenkins XML Job to Job DSL Plugin, requiring permission checks for conversion functionality.

Recommended defensive actions

  • Review and update Jenkins XML Job to Job DSL Plugin to version beyond 0.1.13 if available.
  • Implement strict permission checks for conversion functionality in Jenkins.
  • Monitor Jenkins instance for unauthorized use of conversion functionality.

Evidence notes

Evidence from official CVE and NVD sources indicates a medium-severity vulnerability in Jenkins XML Job to Job DSL Plugin 0.1.13 and earlier. The plugin does not perform permission checks, allowing attackers to invoke conversion functionality without appropriate permissions.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-70439 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-70439

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

  • CVE-2026-70439 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-70439

    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.