Medium (4.3). EPSS 2.0% chance of exploitation in the next 30 days. Fixed in org.jenkins-ci.main:jenkins-core 2.107.3, 2.121.
A server-side request forgery vulnerability exists in Jenkins 2.120 and older, LTS 2.107.2 and older in ZipExtractionInstaller.java that allows users with Overall/Read permission to have Jenkins submit a HTTP GET request to an arbitrary URL and learn whether the response is successful (200) or not.
Severity
CVSS 3.1
4.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
EPSS
2.0% chance of exploitation in the next 30 days; higher than 81% of CVEs (scores of 2026-10-31)