Bug 2448643 (CVE-2026-33002) - CVE-2026-33002 jenkins: Jenkins: Origin validation bypass via DNS rebinding in CLI WebSocket endpoint
Summary: CVE-2026-33002 jenkins: Jenkins: Origin validation bypass via DNS rebinding i...
Keywords:
Status: NEW
Alias: CVE-2026-33002
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-18 16:02 UTC by OSIDB Bzimport
Modified: 2026-03-19 11:15 UTC (History)
7 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-03-18 16:02:36 UTC 
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.
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