CVE-2025-24399
Improper handling of case sensitivity in Jenkins OpenId Connect Authentication Plugin
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2025-24399- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-276
- Updated
- 2026-11-02
EUVDEUVD-2025-0186
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.
- Record
EUVD-2025-0186- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-q9cm-88jx-3vfw
Improper handling of case sensitivity in Jenkins OpenId Connect Authentication Plugin
The Jenkins OpenId Connect Authentication Plugin 4.452.v2849b_d3945fa_ and earlier treats usernames as case-insensitive.
On a Jenkins instance configured with a case-sensitive OpenID Connect provider, this allows attackers to log in as any user by providing a username that differs only in letter case, potentially gaining administrator access to Jenkins.
OpenId Connect Authentication Plugin 4.453.v4d7765c854f4 introduces an advanced configuration option to manage username case sensitivity, with default to case-sensitive.
- Record
GHSA-q9cm-88jx-3vfw- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-178, CWE-276
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2025-24399- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-276
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2025-24399- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-q9cm-88jx-3vfw
Improper handling of case sensitivity in Jenkins OpenId Connect Authentication Plugin
The Jenkins OpenId Connect Authentication Plugin 4.452.v2849b_d3945fa_ and earlier treats usernames as case-insensitive.
On a Jenkins instance configured with a case-sensitive OpenID Connect provider, this allows attackers to log in as any user by providing a username that differs only in letter case, potentially gaining administrator access to Jenkins.
OpenId Connect Authentication Plugin 4.453.v4d7765c854f4 introduces an advanced configuration option to manage username case sensitivity, with default to case-sensitive.
- Record
GHSA-q9cm-88jx-3vfw- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-178, CWE-276
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.jenkins-ci.plugins:oic-authMaven |
before 4.453.v4d7765c854f4 | 4.453.v4d7765c854f4 |
org.jenkins-ci.plugins:oic-authMaven |
before 4.453.v4d7765c854f4, plus listed versions 1.01.11.21.31.4 Show 45 moreShow less1.51.61.71.82.0.02.12.22.32.42.52.63.04.220.v22331f08e6a_34.223.v503b_9a_75a_8a_f4.224.v62720cfa_026e4.225.v03326773b_44b_4.227.v36610663f7604.228.v0c3e8682ff1f4.229.vf736b_fec02f44.236.v4124503b_a_f884.238.v0021f710b_b_f44.239.v325750a_96f3b_4.250.v5a_d9932264374.257.v5360e8489e8b_4.269.va_7526f34f3064.279.vca_c1e2fdd24b_4.284.v0cc21de03d374.290.v6f5e8da_e98b_24.297.vcddb_d8a_e46944.299.v5ca_eb_6a_f3e6d4.303.v84089a_708ea_74.320.v23537cb_a_b_5c64.324.vfd49d010926b_4.329.v994d3f265d684.330.v6fdfc07513e34.331.vd925b_f76f3a_c4.340.ve70636c6590e4.346.v10401f5436224.350.v347c3b_8b_9d954.354.v321ce67a_1de84.355.v3a_fb_fca_b_96d44.371.vc7c0c06e8a_f54.388.v4f73328eb_d2c4.409.ve864b_f48b_0f34.411.v990b_9d36e74e |
4.453.v4d7765c854f4 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-24399 is a high vulnerability (CVSS 8.8) in Jenkins Openid Connect Authentication, published January 22, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.57%, the 47th percentile. Fixed in org.jenkins-ci.plugins:oic-auth 4.453.v4d7765c854f4.
References
Left out here: 6 versions. The JSON record has them.