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CVE-2026-33002

nvd nist
Published: Mar 18, 2026Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability: 1.6 / Impact: 5.9
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

Jenkins 2.442 through 2.554 (both inclusive), LTS 2.426.3 through LTS 2.541.2 (both inclusive) performs origin validation of requests made through the CLI WebSocket endpoint by computing the expected origin for comparison using the Host or X-Forwarded-Host HTTP request headers, making it vulnerable to DNS rebinding attacks that allow bypassing origin validation.

Affected (2)

Products: Jenkins: Jenkins
Jenkins
1 product
Jenkins
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Jenkins
Jenkins
From 2.442 to 2.555
Jenkins
From 2.426.3 to 2.541.3

Related CWEs

CWE-350
Reliance on Reverse DNS Resolution for a Security-Critical Action
The product performs reverse DNS resolution on an IP address to obtain the hostname and make a security decision, but it does not properly ensure that the IP address is truly associated with the hostname.

References (1)

Source: jenkinsci-cert@googlegroups.com
Vendor Advisory

Timeline

No history available yet.