A man in the middle vulnerability exists in Jenkins Inedo BuildMaster Plugin 1.3 and earlier in BuildMasterConfiguration.java, BuildMasterConfig.java, BuildMasterApi.java that allows attackers to impersonate any service that Jenkins connects to.
Severity
CVSS 3.0
7.4 high
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS
0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)