{"id":"UBUNTU-CVE-2021-4435","details":"An untrusted search path vulnerability was found in Yarn. When a victim runs certain Yarn commands in a directory with attacker-controlled content, malicious commands could be executed in unexpected ways.","modified":"2026-05-20T16:06:30.145507274Z","published":"2024-02-04T20:15:00Z","upstream":["CVE-2021-4435"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-4435"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2262284"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2021-4435"},{"type":"REPORT","url":"https://github.com/yarnpkg/yarn/commit/67fcce88935e45092ffa2674c08053f1ef5268a1"},{"type":"REPORT","url":"https://github.com/yarnpkg/yarn/releases/tag/v1.22.13"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-4435"}],"affected":[{"package":{"name":"node-yarnpkg","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/node-yarnpkg?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.13.0-1build1","1.13.0-3","1.19.1-1","1.22.4-2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.22.4-2","binary_name":"yarnpkg"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-4435.json"}},{"package":{"name":"node-yarnpkg","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/node-yarnpkg?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22.10+~cs22.25.14-3","1.22.10+~cs22.25.14-4","1.22.10+~cs22.25.14-5","1.22.10+~cs22.25.14-8"],"ecosystem_specific":{"binaries":[{"binary_version":"1.22.10+~cs22.25.14-8","binary_name":"yarnpkg"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-4435.json"}},{"package":{"name":"node-yarnpkg","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/node-yarnpkg?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22.19+~cs24.27.18-2","1.22.19+~cs24.27.18-4"],"ecosystem_specific":{"binaries":[{"binary_version":"1.22.19+~cs24.27.18-4","binary_name":"yarnpkg"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-4435.json"}},{"package":{"name":"node-yarnpkg","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/node-yarnpkg?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.2+dfsg-3","4.1.0+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"yarnpkg","binary_version":"4.1.0+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-4435.json"}},{"package":{"name":"node-yarnpkg","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/node-yarnpkg?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.1.0+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"yarnpkg","binary_version":"4.1.0+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-4435.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}