High severity · published Sep 2, 2026
CVE-2026-84668
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…
8.8
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JS
Jenkins SAML Plugin · Jenkins Project
through 4.618.v441a_27fa_46d2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-84668
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-84668
www.jenkins.io
https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-4065
More from Jenkins SAML Plugin
7.5
CVE-2025-64131
Jenkins SAML Plugin 4.583.vc68232f7018a_ and earlier does not implement a replay cache, allowing attackers able to obtain information about the SAML authentication flow between a…