CVE-2026-84668
Received Received - Intake

Jenkins SAML Plugin Metadata File Overwrite Vulnerability

Publication date: 2026-09-02

Last updated on: 2026-09-02

Assigner: Jenkins Project

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.

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Meta Information

Published
2026-09-02
Last Modified
2026-09-02
Generated
2026-09-02
AI Q&A
2026-09-02
EPSS Evaluated
N/A
NVD
CVE-2026-84668
EUVD
EUVD-2026-70134

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
jenkinsci jenkins_saml_plugin to 4.618.v441a_27fa_46d2 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

Jenkins SAML Plugin versions 4.618.v441a_27fa_46d2 and earlier have a vulnerability where attackers can overwrite the SAML identity provider metadata file through Stapler data binding. This allows them to replace the file with malicious content and authenticate as any user.

Impact Analysis

This vulnerability allows attackers to impersonate any user in the Jenkins environment by replacing the SAML metadata file. This could lead to unauthorized access, data breaches, or manipulation of Jenkins jobs and configurations.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating compliance requirements such as GDPR (data protection) and HIPAA (health information privacy). Organizations using the affected plugin may face legal and regulatory penalties.

Mitigation Strategies

Upgrade Jenkins SAML Plugin to version 4.619.v441a_27fa_46d2 or later to address the vulnerability.

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