CVE-2025-24399: jenkins openid_connect_authentication Incorrect Default Permissions
Vulnerability summary
CVE-2025-24399 is a high (CVSS 8.8) Incorrect Default Permissions vulnerability in jenkins openid_connect_authentication. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 44.9% of scored vulnerabilities.
Timeline
- 22-01-2025PublishedVulnerability first disclosed.
- 18-03-2025Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · MavenEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.55%
Chance of exploitation in the next 30 days
Percentile
45%
Versus all other CVEs
30-day change
0.00 pp
From 0.55% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Jenkins1 product
- openid_connect_authentication< 4.438.440.v3f5f201de5dc | ≥ 4.444.vd4c54f157201, < 4.453.v4d7765c854f4
Org.jenkins-ci.plugins1 product
- oic-auth< 4.453.v4d7765c854f4
2 vendors · 2 products