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.
Published: 2026-09-02
Score: 4.3 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 02 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-116
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 02 Sep 2026 10:45:00 +0000

Type Values Removed Values Added
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.
References

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: jenkins

Published:

Updated: 2026-09-02T17:19:10.287Z

Reserved: 2026-09-01T21:55:27.033Z

Link: CVE-2026-84655

cve-icon Vulnrichment

Updated: 2026-09-02T17:19:02.456Z

cve-icon NVD

Status : Received

Published: 2026-09-02T16:17:30.177

Modified: 2026-09-02T18:21:31.423

Link: CVE-2026-84655

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-116

    Improper Encoding or Escaping of Output