Name: CVE-2026-84646: Deserialization of Untrusted Data
Creator: Rapid7
Published: 2026-09-02T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-84646, CWE-502, CVSS 4.3, EPSS 0.00338

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, user objects can appear as nested field values in other deserialized XML objects, allowing attackers with Overall/Read permission to create user objects by submitting crafted XML.

CVSS Details

CVSS 3.1 Base Score: 4.3
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Freebsd	—	Upgrade jenkinsUpgrade jenkins-lts	Sep 7, 2026	Sep 2, 2026
Jenkins 2026 09 02	—	Upgrade Jenkins LTS to the latest versionUpgrade Jenkins to version 2.580Upgrade Jenkins to the latest versionUpgrade Jenkins LTS to version 2.568.3	Sep 3, 2026	Sep 2, 2026

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CVSS Details

Covered by Rapid7

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