CVE-2026-70429

Jenkins 2.575 and earlier, LTS 2.568.1 and earlier handles case-insensitivity in user names and group names inconsistently, allowing attackers able to create new users or groups with names that case-insensitively match other characters to impersonate other users or be granted their permissions in some circumstances.

Score

CVSS 3.1 8.1 High

Status

Analyzed - jenkinsci-cert@googlegroups.com

Published

2026-08-05

Last modified

2026-10-24

Weaknesses

CWE-178

Affected products

• Jenkins (Jenkins)
• Jenkins (Jenkins Project)

References

• https://www.jenkins.io/security/advisory/2026-08-05/#SECURITY-3924