CVE-2026-84655: Vulnerability in Jenkins Project Jenkins
Jenkins 2.579 and earlier, LTS 2.568.2 and earlier does not escape map keys when serializing objects as JSON and Python through its REST API, allowing attackers able to control map property names to inject arbitrary fields into JSON and Python API responses.
CVE-2026-84655: Vulnerability in Jenkins Project Jenkins
Description
Jenkins 2.579 and earlier, LTS 2.568.2 and earlier does not escape map keys when serializing objects as JSON and Python through its REST API, allowing attackers able to control map property names to inject arbitrary fields into JSON and Python API responses.
CVSS v3.1
Score 4.3medium
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- jenkins
- Date Reserved
- 2026-09-01T21:55:27.033Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a984662acd9273b496cc3d0
Added to database: 09/02/2026, 15:53:06 UTC
Last updated: 09/03/2026, 01:11:36 UTC
Views: 8
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