CVE-2026-84650

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.

  • Published Sep 2, 2026
  • CVSS 8.8 high
  • 0.5% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-84650 at the National Vulnerability Database