CVE-2023-27902

A flaw was found in Jenkins. Jenkins uses temporary directories adjacent to workspace directories, usually with the @tmp name suffix, to store temporary files related to the build. In pipelines, these temporary directories are adjacent to the current working directory when operating in a subdirectory of the automatically allocated workspace. Jenkins-controlled processes, like SCMs, may store credentials in these directories. Affected versions of Jenkins show these temporary directories when viewing job workspaces, which allows attackers with Item/Workspace permission to access their contents.

Jenkins is a continuous integration server that monitors executions of repeated jobs, such as building a software project or jobs run by cron. Issues addressed include bypass, cross site scripting, denial of service, deserialization, improper authorization, and information leakage vulnerabilities.