CVE-2026-84655

MEDIUM CVSS 4.3 View on NVD ↗

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 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References

https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3879

Published: Sep 02, 2026 16:17 UTC Modified: Sep 02, 2026 18:21 UTC