CVE
CVE-2026-33002
Jenkins has a DNS rebinding vulnerability in WebSocket CLI origin validation
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.
Package Versions Affected
Package Version
patch Availability
No items found.
Automatically patch vulnerabilities without upgrading
Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request
CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
7.5
-
3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
C
H
U
-
Related Resources
No items found.
References
https://nvd.nist.gov/vuln/detail/CVE-2026-33002, https://github.com/jenkinsci/jenkins/commit/348666da7136ef8270f88c0a7350562b0ba7f8ce, https://github.com/jenkinsci/jenkins, https://www.jenkins.io/security/advisory/2026-03-18/#SECURITY-3674
Basic Information
Ecosystem
