In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Jenkins does not rotate the session when a user is authenticated via the "remember me" cookie, allowing attackers able to serve content on the same site as Jenkins to set a known session cookie in the victim's browser, which after the victim authenticates via the "remember me" cookie, grants the attacker access to Jenkins as that user.

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Fixes

Solution

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Workaround

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History

Thu, 03 Sep 2026 11:45:00 +0000

Type Values Removed Values Added
Title Session Fixation via Remember-Me Cookie Enables Remote Account Takeover in Jenkins
Weaknesses CWE-613

Wed, 02 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 02 Sep 2026 10:45:00 +0000

Type Values Removed Values Added
Description In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Jenkins does not rotate the session when a user is authenticated via the "remember me" cookie, allowing attackers able to serve content on the same site as Jenkins to set a known session cookie in the victim's browser, which after the victim authenticates via the "remember me" cookie, grants the attacker access to Jenkins as that user.
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: jenkins

Published:

Updated: 2026-09-02T17:23:09.046Z

Reserved: 2026-09-01T21:55:27.033Z

Link: CVE-2026-84652

cve-icon Vulnrichment

Updated: 2026-09-02T17:23:00.504Z

cve-icon NVD

Status : Received

Published: 2026-09-02T16:17:29.893

Modified: 2026-09-02T18:21:31.163

Link: CVE-2026-84652

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T11:30:03Z

Weaknesses