{"id":"UBUNTU-CVE-2026-41493","details":"YARD is a Ruby Documentation tool. Prior to version 0.9.42, a path traversal vulnerability was discovered in YARD when using yard server to serve documentation. This bug would allow unsanitized HTTP requests to access arbitrary files on the machine of a yard server host under certain conditions. This issue has been patched in version 0.9.42.","modified":"2026-06-10T18:15:11.572855603Z","published":"2026-05-08T14:16:00Z","related":["USN-8394-1"],"upstream":["CVE-2026-41493"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-41493"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-41493"},{"type":"REPORT","url":"https://github.com/lsegal/yard/security/advisories/GHSA-3jfp-46x4-xgfj"},{"type":"REPORT","url":"https://github.com/lsegal/yard/releases/tag/v0.9.42"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8394-1"}],"affected":[{"package":{"name":"yard","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/yard?arch=source&distro=esm-apps-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.7.6+git20160220-3ubuntu0.1~esm2"}]}],"versions":["0.8.7.6-1","0.8.7.6+git20160220-3","0.8.7.6+git20160220-3ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"yard","binary_version":"0.8.7.6+git20160220-3ubuntu0.1~esm2"}],"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41493.json"}},{"package":{"name":"yard","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/yard?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.12-2ubuntu0.1~esm2"}]}],"versions":["0.9.9-1","0.9.12-1","0.9.12-1ubuntu3","0.9.12-2","0.9.12-2ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"yard","binary_version":"0.9.12-2ubuntu0.1~esm2"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41493.json"}},{"package":{"name":"yard","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/yard?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.24-1+deb11u1ubuntu0.1~esm1"}]}],"versions":["0.9.16-1","0.9.20-1","0.9.24-1","0.9.24-1+deb11u1build0.20.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"yard","binary_version":"0.9.24-1+deb11u1ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41493.json"}},{"package":{"name":"yard","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/yard?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.26-1ubuntu0.1+esm1"}]}],"versions":["0.9.24-1","0.9.26-1","0.9.26-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"yard","binary_version":"0.9.26-1ubuntu0.1+esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41493.json"}},{"package":{"name":"yard","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/yard?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.36-1ubuntu0.1~esm1"}]}],"versions":["0.9.28-2","0.9.34-1","0.9.35-1","0.9.36-1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"yard","binary_version":"0.9.36-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41493.json"}},{"package":{"name":"yard","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/yard?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.37-1"],"ecosystem_specific":{"binaries":[{"binary_name":"yard","binary_version":"0.9.37-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41493.json"}},{"package":{"name":"yard","ecosystem":"Ubuntu:Pro:26.04:LTS","purl":"pkg:deb/ubuntu/yard?arch=source&distro=esm-apps%2Fresolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.38-1ubuntu0.1~esm1"}]}],"versions":["0.9.37-1","0.9.37-1build1","0.9.38-1"],"ecosystem_specific":{"binaries":[{"binary_name":"yard","binary_version":"0.9.38-1ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41493.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}