CVE-2025-67635

High

Description

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.

SeverityHigh

CVSS7.5

Exploit probability—

Product

Jenkins

PublishedDec 10, 2025

First seenDec 10, 2025

Weakness typeCWE-404CWE-404

How to fix

Update

jenkins jenkins2.528.3, 2.541 or later
org.jenkins-ci.main:jenkins-core2.541, 2.528.3 or later
org.jenkins-ci.main:cli2.541, 2.528.3 or later

Vendor advisories

jenkins.io/security/advisory/2025-12-10/#SECURITY-3630

Affected products

Product	Affected versions	Fixed in
jenkins jenkins	v < 2.528.3, v < 2.541	2.528.3, 2.541
org.jenkins-ci.main:jenkins-coreMaven	2.529 ≤ v < 2.541, v < 2.528.3	2.541, 2.528.3
org.jenkins-ci.main:cliMaven	2.529 ≤ v < 2.541, v < 2.528.3	2.541, 2.528.3

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