Bug 2527599 (CVE-2026-84646) - CVE-2026-84646 jenkins: Jenkins: Unauthorized creation of user objects via deserialization vulnerability
Summary: CVE-2026-84646 jenkins: Jenkins: Unauthorized creation of user objects via de...
Keywords:
Status: NEW
Alias: CVE-2026-84646
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-02 16:02 UTC by OSIDB Bzimport
Modified: 2026-09-03 16:48 UTC (History)
0 users

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Description OSIDB Bzimport 2026-09-02 16:02:07 UTC 
In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, user objects can appear as nested field values in other deserialized XML objects, allowing attackers with Overall/Read permission to create user objects by submitting crafted XML.
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