High (7.5). EPSS 87% chance of exploitation in the next 30 days. Fixed in org.jenkins-ci.main:jenkins-core 2.121.2, 2.132.
A arbitrary file read vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and earlier in the Stapler web framework's org/kohsuke/stapler/Stapler.java that allows attackers to send crafted HTTP requests returning the contents of any file on the Jenkins master file system that the Jenkins master has access to.
Severity
CVSS 3.1
7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
87% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)