Name: CVE-2026-84650: 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-2026-84650, CWE-502, CWE-566, CVSS 8.8, EPSS 0.00468

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, transient fields cannot be excluded from deserialization, allowing attackers able to submit configuration updates to specify the values of transient fields that will be deserialized, the impact depending on how those fields are used.

CVSS Details

CVSS 3.1 Base Score: 8.8
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

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 to the latest versionUpgrade Jenkins LTS to version 2.568.3Upgrade Jenkins to version 2.580Upgrade Jenkins LTS to the latest version	Sep 3, 2026	Sep 2, 2026

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CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence