CVE-2026-84655
- State
- Published
- Severity
- 4.3 Medium
- Published
- Sep 2, 2026
- Updated
- Sep 2, 2026
- Reserved
- Sep 1, 2026
Description
Jenkins 2.579 and earlier, LTS 2.568.2 and earlier does not escape map keys when serializing objects as JSON and Python through its REST API, allowing attackers able to control map property names to inject arbitrary fields into JSON and Python API responses.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N | CISA-ADP |
Weaknesses
- CWE-116 Improper Encoding or Escaping of Output
Affected Products
| Product | Versions |
|---|---|
JenkinsJenkins Project |
|
References
- Jenkins Security Advisory 2026-09-02vendor-advisory
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