CVE-2026-84645

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, objects of types marked as storing their configuration in independent top-level configuration files in Jenkins (such as the global configuration and jobs) can appear as nested field values in user-submitted `config.xml` documents and subsequently handle HTTP requests via Stapler, resulting in remote code execution.

Affected

Jenkins Project · Jenkins

CVSS v3.1 CNA

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.79% chance of exploitation in the next 30 days, 55th percentile

Published

2026-09-02

Updated

2026-09-03

Proof-of-concept exploits (1)

• mhtsec/CVE-2026-846452★ · 2026-09-05

Security advisories

• https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3972

References

• CVE Record
• NVD entry

Related

• CVE-2026-63030
• CVE-2026-85706
• CVE-2026-94545