Case Insensitivity Vulnerability in Jenkins OpenId Connect Authentication Plugin
CVE-2025-24399

8.8HIGH

Key Information:

Vendor
Jenkins
Status
Jenkins Openid Connect Authentication Plugin
Vendor
CVE Published:
22 January 2025

Summary

The Jenkins OpenId Connect Authentication Plugin misinterprets username case sensitivity, enabling attackers to log in as any user. This flaw occurs in versions 4.452.v2849b_d3945fa_ and earlier, affecting Jenkins configurations that utilize case-sensitive OpenID Connect providers. By submitting a username with a different letter casing, an attacker can potentially gain unauthorized access, including administrative privileges, leading to significant security risks.

Affected Version(s)

Jenkins OpenId Connect Authentication Plugin 4.453.v4d7765c854f4

Jenkins OpenId Connect Authentication Plugin 4.453.v4d7765c854f4

Jenkins OpenId Connect Authentication Plugin 4.438.440.v3f5f201de5dc

References

https://www.jenkins.io/security/advisory/2025-01-22/#SECU...
vendor-advisory

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.