Vulnerability in Jenkins Openid Connect Authentication
CVE-2025-24399
Jenkins OpenId Connect Authentication Plugin 4.452.v2849b_d3945fa_ and earlier, except 4.438.440.v3f5f201de5dc, treats usernames as case-insensitive, allowing attackers on Jenkins instances configured with a case-sensitive OpenID Connect provider to log in as any user by providing a username that differs only in letter case, potentially gaining administrator access to Jenkins.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (43.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Jenkins Openid Connect Authentication
- Jenkins Project Openid Connect Authentication Plugin — versions 4.453.v4d7765c854f4, 4.438.440.v3f5f201de5dc
Weakness classification (CWE)
References
- www.jenkins.io/security/advisory/2025-01-22/ (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-24399?
- CVE-2025-24399 is a high-severity vulnerability in Jenkins Openid Connect Authentication, classified under Incorrect Default Permissions. CVSS score: 8.8/10. Published 2025-01-22.
- How severe is CVE-2025-24399?
- High severity. CVSS v3 base score is 8.8 out of 10.