CVE-2026-84655 Affecting jenkins package, versions <2.580-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-JENKINS-19644834
- published9 Sept 2026
- disclosed2 Sept 2026
Introduced: 2 Sep 2026
NewCVE-2026-84655 (opens in a new tab)How to fix?
Upgrade Minimos:latest jenkins to version 2.580-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream jenkins package and not the jenkins package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
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.