CVE-2026-84668

Jenkins SAML Plugin Metadata File Overwrite Allows User Impersonation

Published Sep 2, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
Jenkins SAML Plugin 4.618.v441a_27fa_46d2 and earlier allows overwriting the SAML identity provider metadata file through Stapler data binding, allowing attackers to replace it with attacker-controlled content and authenticate as any user.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Jenkins Project
Jenkins Project jenkins Saml Plugin
Vendors & Products Jenkins Project
Jenkins Project jenkins Saml Plugin
Type Values Removed Values Added
Title Jenkins SAML Plugin Metadata File Overwrite Allows User Impersonation
Type Values Removed Values Added
Weaknesses CWE-284
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

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

Type Values Removed Values Added
Description Jenkins SAML Plugin 4.618.v441a_27fa_46d2 and earlier allows overwriting the SAML identity provider metadata file through Stapler data binding, allowing attackers to replace it with attacker-controlled content and authenticate as any user.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
jenkins
Published
Updated
Sep 2, 2026, 5:00 PM
Reserved
Sep 1, 2026, 9:55 PM
Status
Awaiting Analysis
Published
Sep 2, 2026, 4:17 PM
Modified
Sep 3, 2026, 5:13 PM