Description
File path filters in the agent-to-controller security subsystem of Jenkins 2.318 and earlier, LTS 2.303.2 and earlier do not canonicalize paths, allowing operations to follow symbolic links to outside allowed directories.
Remediation
References
https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455
Related Vulnerabilities
CVE-2020-1714 Vulnerability in maven package org.keycloak:keycloak-common
CVE-2020-7652 Vulnerability in npm package snyk-broker
CVE-2016-6636 Vulnerability in maven package org.cloudfoundry.identity:cloudfoundry-identity-login
CVE-2021-24033 Vulnerability in maven package org.webjars.npm:react-dev-utils