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: 2025-01-22 Last update: 2025-05-07 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-24399 is rated Moderate Risk (56.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.40%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-24399

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-04 0.47% 0.40% -0.07%
2 2026-03-02 0.35% 0.47% +0.13%
3 2025-11-21 — 0.35% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-24399

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-24399

GitHub Security Advisory for CVE-2025-24399

GHSA-q9cm-88jx-3vfw · Severity: high · Ecosystem: maven — Improper handling of case sensitivity in Jenkins OpenId Connect Authentication Plugin

OS Trackers for CVE-2025-24399

vendor priority summary link
alpine — CVE-2025-24399: 1 source package rows (jenkins); 33 state rows across 3 repos (3.22-community, 3.23-community, edge-community); fixed 0, open 33. https://security.alpinelinux.org/vuln/CVE-2025-24399

Affected software / configurations for CVE-2025-24399

Vendor Product Version Raw CPE
jenkins openid_connect_authentication < 4.438.440.v3f5f201de5dc cpe:2.3:a:jenkins:openid_connect_authentication:*:*:*:*:*:jenkins:*:*
jenkins openid_connect_authentication >= 4.444.vd4c54f157201, < 4.453.v4d7765c854f4 cpe:2.3:a:jenkins:openid_connect_authentication:*:*:*:*:*:jenkins:*:*

References for CVE-2025-24399

cvelogic Threat Intelligence