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.
Published: 2026-09-02
Score: 7.3 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 03 Sep 2026 19:00:00 +0000

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

Thu, 03 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-384
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N'}


Thu, 03 Sep 2026 12:00:00 +0000

Type Values Removed Values Added
First Time appeared Jenkins Project
Jenkins Project jenkins
Vendors & Products Jenkins Project
Jenkins Project jenkins

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

Subscriptions

Jenkins Project Jenkins
cve-icon MITRE

Status: PUBLISHED

Assigner: jenkins

Published:

Updated: 2026-09-03T15:22:20.846Z

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 : Awaiting Analysis

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

Modified: 2026-09-03T17:13:16.490

Link: CVE-2026-84652

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T18:45:08Z

Weaknesses