Jenkins 2.213 and earlier, LTS 2.204.1 and earlier improperly reuses encryption key parameters in the Inbound TCP Agent Protocol/3, allowing unauthorized attackers with knowledge of agent names to obtain the connection secrets for those agents, which can be used to connect to Jenkins, impersonating those agents.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| org.jenkins-ci.main:jenkins-core(Maven) | 0 | 2.204.2 | N/A |
| org.jenkins-ci.main:jenkins-core(Maven) | 2.205 | 2.214 | N/A |
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