{"id":"UBUNTU-CVE-2026-110717","details":"Janus WebRTC Server through 1.4.3 contains a path traversal vulnerability in the Record&Play plugin that allows unauthenticated attackers to write files outside recordings_path via the record request filename. Attackers can supply filenames with path separators to create or truncate files ending in -audio.mjr, -video.mjr or -data.mjr anywhere the Janus process can write outside protected folders.","modified":"2026-10-17T12:59:51.911338426Z","published":"2026-10-15T00:00:00Z","upstream":["CVE-2026-110717"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-110717"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-110717"},{"type":"REPORT","url":"https://github.com/meetecho/janus-gateway"},{"type":"REPORT","url":"https://github.com/meetecho/janus-gateway/blob/1f0b75cac1c9ad819ee4c2a905a2c65b00b82cde/src/plugins/janus_recordplay.c#L1965"},{"type":"REPORT","url":"https://github.com/meetecho/janus-gateway/blob/1f0b75cac1c9ad819ee4c2a905a2c65b00b82cde/src/record.c#L218"},{"type":"REPORT","url":"https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/HkEaF-piGl"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/janus-webrtc-server-through-1.4.3-path-traversal-via-record-play-filename"}],"affected":[{"package":{"name":"janus","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/janus?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.4-2","0.2.5-1","0.2.6-1","0.2.6-1build1","0.2.6-1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"janus","binary_version":"0.2.6-1build2"},{"binary_name":"janus-demos","binary_version":"0.2.6-1build2"},{"binary_name":"janus-tools","binary_version":"0.2.6-1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110717.json"}},{"package":{"name":"janus","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/janus?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.3-2","0.7.3-2build1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.7.3-2build1","binary_name":"janus"},{"binary_name":"janus-demos","binary_version":"0.7.3-2build1"},{"binary_version":"0.7.3-2build1","binary_name":"janus-tools"},{"binary_name":"libjs-janus","binary_version":"0.7.3-2build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110717.json"}},{"package":{"name":"janus","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/janus?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.11.2-1","0.11.5-1","0.11.5-1ubuntu1","0.11.5-3","0.11.5-4","0.11.6-1","0.11.7-1","0.11.8-1","0.11.8-2","0.11.8-3"],"ecosystem_specific":{"binaries":[{"binary_name":"janus","binary_version":"0.11.8-3"},{"binary_version":"0.11.8-3","binary_name":"janus-demos"},{"binary_version":"0.11.8-3","binary_name":"janus-tools"},{"binary_version":"0.11.8-3","binary_name":"libjs-janus"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110717.json"}},{"package":{"name":"janus","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/janus?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.2-1build2","1.1.2-1build3","1.1.2-1build4","1.1.2-1build5"],"ecosystem_specific":{"binaries":[{"binary_name":"janus","binary_version":"1.1.2-1build5"},{"binary_name":"janus-demos","binary_version":"1.1.2-1build5"},{"binary_version":"1.1.2-1build5","binary_name":"janus-tools"},{"binary_version":"1.1.2-1build5","binary_name":"libjs-janus-gateway"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110717.json"}},{"package":{"name":"janus","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/janus?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.2-4","1.4.1+ds-4","1.4.1+ds-4build1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.4.1+ds-4build1","binary_name":"janus"},{"binary_name":"janus-demos","binary_version":"1.4.1+ds-4build1"},{"binary_name":"janus-tools","binary_version":"1.4.1+ds-4build1"},{"binary_version":"1.4.1+ds-4build1","binary_name":"libjs-janus-gateway"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110717.json"}},{"package":{"name":"janus","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/janus?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.2-3","1.1.2-3.1","1.1.2-4"],"ecosystem_specific":{"binaries":[{"binary_name":"janus","binary_version":"1.1.2-4"},{"binary_name":"janus-demos","binary_version":"1.1.2-4"},{"binary_version":"1.1.2-4","binary_name":"janus-tools"},{"binary_name":"libjs-janus-gateway","binary_version":"1.1.2-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110717.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}