CVE-2026-84655

Summary

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.

Affected Software

VendorProductVersion RangeStatus
Jenkins ProjectJenkins2.580 < *unaffected
Jenkins ProjectJenkins2.568.3 < 2.568.*unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References