CVE-2026-84655
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | jenkins project |
| Product | jenkins |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 2, 2026 |
| Last Updated | Sep 2, 2026 |
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Affected Versions
Jenkins Project / Jenkins
All versions affected