CVE-2026-84650

State: Published
Severity: 8.8 High
Published: Sep 2, 2026
Updated: Sep 17, 2026
Reserved: Sep 1, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-566 Authorization Bypass Through User-Controlled SQL Primary Key
CWE-502 Deserialization of Untrusted Data

Affected Products

Product	Versions
JenkinsJenkins Project	2.580 and laterNot affected 2.568.3 to before 2.568.*Not affected

References

Jenkins Security Advisory 2026-09-02vendor-advisory

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