CVE-2026-84668

High

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.

SeverityHigh

CVSS8.8

Exploit probability—

ProductJenkins SAML Plugin

PublishedSep 2, 2026

First seenSep 2, 2026

Weakness typeCWE-284Improper access control

How to fix

Vendor advisories

jenkins.io/security/advisory/2026-09-02/#SECURITY-4065

Affected products

Product	Affected versions	Fixed in
Jenkins Project Jenkins SAML Plugin	v ≤ 4.618.v441a_27fa_46d2	—

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