CVE-2026-84668

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-02 · updated 2026-09-03
Weakness: CWE-284

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.

Affected products

Jenkins Project Jenkins SAML Plugin: through 4.618.v441a_27fa_46d2

References

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

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