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CVE-2025-67635

Good to know:

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Date: December 10, 2025

Jenkins 2.540 and earlier, LTS 2.528.2 and earlier does not properly close HTTP-based CLI connections when the connection stream becomes corrupted, allowing unauthenticated attackers to cause a denial of service.

Severity Score

Related Resources (5)

https://github.com/jenkinsci/jenkins/commit/efa1816322026f2b9235a27eee814bcc7ba0a764
https://nvd.nist.gov/vuln/detail/CVE-2025-67635
https://www.jenkins.io/security/advisory/2025-12-10/#SECURITY-3630
https://github.com/jenkinsci/jenkins
https://www.mend.io/vulnerability-database/CVE-2025-67635

Severity Score

Weakness Type (CWE)

Improper Resource Shutdown or Release

CWE-404

Top Fix

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Upgrade Version

Upgrade to version org.jenkins-ci.main:jenkins-core:2.541;org.jenkins-ci.main:jenkins-core:2.528.3;org.jenkins-ci.main:cli:2.541;org.jenkins-ci.main:cli:2.528.3;https://github.com/jenkinsci/jenkins.git - jenkins-2.541;https://github.com/jenkinsci/jenkins.git - jenkins-2.528.3

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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