Name: CVE-2021-21602: Improper Link Resolution Before File Access
Creator: Rapid7
Published: 2021-01-13T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-21602, CWE-59, CVSS 6.5, EPSS 0.01393

Jenkins 2.274 and earlier, LTS 2.263.1 and earlier allows reading arbitrary files using the file browser for workspaces and archived artifacts by following symlinks.

CVSS Details

CVSS 3.1 Base Score: 6.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade jenkins	Aug 22, 2024	Jan 13, 2021
Arch Linux	—	Upgrade to the latest version of Arch Linux	Jul 11, 2025	Jan 13, 2021
Jenkins 2021 01 13	—	Upgrade Jenkins LTS to the latest versionUpgrade Jenkins LTS to version 2.263.2Upgrade Jenkins to version 2.275Upgrade Jenkins to the latest version	Dec 2, 2021	Jan 13, 2021
Redhat Openshift	—	Upgrade python-eventletUpgrade python-oslo-serviceUpgrade openshift-ansibleUpgrade python-hardwareUpgrade cri-toolsUpgrade ostreeUpgrade python-pyrsistentUpgrade python-oslo-policyUpgrade python-oslo-serializationUpgrade python-ironic-libUpgrade openstack-ironic-inspectorUpgrade ironic-imagesUpgrade ironic-images-ipa-ppc64leUpgrade python-oslo-upgradecheckUpgrade python-ironic-prometheus-exporterUpgrade cri-oUpgrade kata-containersUpgrade openstack-ironicUpgrade python-stevedoreUpgrade butaneUpgrade python-oslo-i18nUpgrade python-oslo-dbUpgrade openshift-kuryrUpgrade python-openshiftUpgrade openstack-ironic-python-agentUpgrade rteval-loadsUpgrade openvswitch2.15Upgrade python-oslo-concurrencyUpgrade ironic-images-ipa-x86_64Upgrade ovn2.13Upgrade ignitionUpgrade python-sushy-oem-idracUpgrade redhat-release-coreosUpgrade python-oslo-contextUpgrade toolboxUpgrade runcUpgrade coreos-installerUpgrade python-oslo-logUpgrade python-sushyUpgrade python-kubernetesUpgrade openshiftUpgrade python-toozUpgrade conmonUpgrade jenkins-2-pluginsUpgrade console-login-helper-messagesUpgrade openshift-clientsUpgrade rust-afterburnUpgrade python-debtcollectorUpgrade python-keystoneauth1Upgrade atomic-openshift-service-idlerUpgrade machine-config-daemonUpgrade python-openstacksdkUpgrade python-oslo-configUpgrade haproxyUpgrade python-oslo-utilsUpgrade python-jsonschemaUpgrade podmanUpgrade jenkins	Feb 19, 2021	Jan 13, 2021

Prioritize with Active Threat Intelligence

With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.

Explore Intelligence Hub

MDR Buyer's Guide

Global Threat Landscape Report

Grow your business

CVSS Details

Covered by Rapid7

Prioritize with Active Threat Intelligence