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Vulnerability record · CVE-2026-84670 · published 2 September 2026

CVE-2026-84670: Deserialization of untrusted data vulnerability

Jenkins Performance Plugin 1015.v09ca_52b_3370e and earlier does not restrict the classes that can be instantiated when deserializing cached performance reports stored in the build directory on the Jenkins controller, allowing attackers with Item/Configure permission to execute arbitrary code on the Jenkins controller.

8.8 CVSS 3.1 High EPSS 0.64% · top 51.5% CWE-502 · Deserialization of untrusted data Awaiting Analysis
8.8CVSS 3.1 base score
0.64%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
3 Sep 2026Last modified by NVD

Description

Jenkins Performance Plugin 1015.v09ca_52b_3370e and earlier does not restrict the classes that can be instantiated when deserializing cached performance reports stored in the build directory on the Jenkins controller, allowing attackers with Item/Configure permission to execute arbitrary code on the Jenkins controller.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-4026

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Source: NIST National Vulnerability Database (record CVE-2026-84670), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.