CVE-2026-84651

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, the REST API and CLI endpoints for updating agent configuration do not prevent a submitted configuration from overwriting a different agent by specifying that agent's name in the submitted XML document, allowing attackers with Agent/Configure...

PT-2026-84774

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, the REST API and CLI endpoints for updating agent configuration do not prevent a submitted configuration from overwriting a different agent by specifying that agent's name in the submitted XML document, allowing attackers with Agent/Configure...

GHSA-W7JR-WQW6-54XC Non-constant time comparison of inbound TCP agent connection secret

Jenkins 2.218 and earlier, LTS 2.204.1 and earlier does not use a constant-time comparison validating the connection secret when an inbound TCP agent connection is initiated. This could potentially allow attackers to use statistical methods to obtain the connection secret. Jenkins 2.219, LTS...

jenkins: Inbound TCP Agent Protocol/3 authentication bypass

A flaw was found in Jenkins. Encryption key parameters are improperly reused in the Inbound TCP Agent Protocol/3 allowing unauthorized attackers with knowledge of agent names to obtain the connection secrets for those agents. The highest threat from this vulnerability is to data confidentiality...

jenkins: Non-constant time comparison of inbound TCP agent connection secret

Jenkins 2.218 and earlier, LTS 2.204.1 and earlier did not use a constant-time comparison function for validating connection secrets, which could potentially allow an attacker to use a timing attack to obtain this secret...

jenkins: Non-constant time comparison of inbound TCP agent connection secret

Jenkins 2.218 and earlier, LTS 2.204.1 and earlier did not use a constant-time comparison function for validating connection secrets, which could potentially allow an attacker to use a timing attack to obtain this secret...