{"id":"CVE-2026-53449","aliases":["DEBIAN-CVE-2026-53449","EUVD-2026-42970","GHSA-jj76-vwjw-w34r","UBUNTU-CVE-2026-53449","openSUSE-SU-2026:11617-1"],"status":"published","title":"Coturn: Arbitrary File Write via CLI psd Command","description":"Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.0, the psd print sessions dump CLI command in coturn takes a filename argument and directly passes it to fopen with no path validation. An authenticated admin with CLI access can overwrite arbitrary files writable by the coturn process because the command string is used as-is after stripping the psd prefix and leading spaces, allowing truncation and overwrite with session dump data. This issue is fixed in version 4.13.0.","severity":{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00207,"percentile":0.10837,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-73"],"published":"2026-07-10T17:59:11Z","modified":"2026-10-28T10:51:59Z","fixes":[{"ecosystem":"Debian:14","package":"coturn","fixed_in":["4.14.0-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"coturn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.12.0-1","4.14.0-1","4.15.0-1","4.18.0-1","4.6.1-1","4.6.1-2"]},{"source":"osv","ecosystem":"Debian:13","package":"coturn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.12.0-1","4.14.0-1","4.15.0-1","4.18.0-1","4.6.1-2"]},{"source":"osv","ecosystem":"Debian:14","package":"coturn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.14.0-1"}]}],"versions":["4.12.0-1","4.6.1-2"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"coturn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.5.4-2","4.5.0.2-3","4.5.0.3-1","4.5.0.3-1build1","4.5.0.3-1ubuntu0.2","4.5.0.3-1ubuntu0.3","4.5.0.3-1ubuntu0.4"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"coturn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.0.6-1ubuntu2","4.5.0.7-1ubuntu1","4.5.0.7-1ubuntu2","4.5.0.7-1ubuntu2.18.04.1","4.5.0.7-1ubuntu2.18.04.2","4.5.0.7-1ubuntu2.18.04.3"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"coturn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.1.1-1.1build1","4.5.1.1-1.1build2","4.5.1.1-1.1ubuntu0.20.04.1","4.5.1.1-1.1ubuntu0.20.04.2"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"coturn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.2-3","4.5.2-3.1~ubuntu22.04.1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"coturn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.1-1build1","4.6.1-1build2","4.6.1-1build3","4.6.1-1build4"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"coturn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.1-2build2","4.12.0-1","4.14.0-1","4.15.0-1","4.18.0-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"coturn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.1-2build1","4.6.1-2build2"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"coturn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.2-1.1"}]}],"bundled":17}],"products":[{"vendor":"coturn","product":"coturn"},{"vendor":"coturn_project","product":"coturn"}],"references":[{"url":"https://github.com/coturn/coturn/security/advisories/GHSA-jj76-vwjw-w34r","tags":["x_refsource_CONFIRM","exploit","Exploit","Third Party Advisory","advisory","report"]},{"url":"https://github.com/coturn/coturn/commit/e72930f571beba3bc7a9f97661af2614aae92a55","tags":["x_refsource_MISC","Patch","fix","report"]},{"url":"https://github.com/coturn/coturn/releases/tag/4.13.0","tags":["x_refsource_MISC","Release Notes","web","report"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53449.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53449","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-53449","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-53449","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53449","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-40613","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-43915","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-43994","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-53448","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-53449","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-53450","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-62959","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-65981","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-68552","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-68553","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-68554","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-68555","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73212","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73213","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73214","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73215","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73216","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-53449","title":"Coturn: Arbitrary File Write via CLI psd Command","description":"Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.0, the psd print sessions dump CLI command in coturn takes a filename argument and directly passes it to fopen with no path validation. An authenticated admin with CLI access can overwrite arbitrary files writable by the coturn process because the command string is used as-is after stripping the psd prefix and leading spaces, allowing truncation and overwrite with session dump data. This issue is fixed in version 4.13.0.","status":"published","published":"2026-07-10T17:59:11.161Z","modified":"2026-07-13T18:23:43.228Z","cvss":[{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-73"],"updated_at":"2026-11-02T14:20:00.11477Z"}],"euvd":[{"id":"EUVD-2026-42970","description":"Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.0, the psd print sessions dump CLI command in coturn takes a filename argument and directly passes it to fopen with no path validation. An authenticated admin with CLI access can overwrite arbitrary files writable by the coturn process because the command string is used as-is after stripping the psd prefix and leading spaces, allowing truncation and overwrite with session dump data. This issue is fixed in version 4.13.0.","status":"published","published":"2026-07-10T17:59:11Z","modified":"2026-07-13T18:23:43Z","cvss":[{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T18:20:00.696533Z"}],"nvd":[{"id":"CVE-2026-53449","description":"Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.0, the psd print sessions dump CLI command in coturn takes a filename argument and directly passes it to fopen with no path validation. An authenticated admin with CLI access can overwrite arbitrary files writable by the coturn process because the command string is used as-is after stripping the psd prefix and leading spaces, allowing truncation and overwrite with session dump data. This issue is fixed in version 4.13.0.","status":"published","published":"2026-07-10T19:17:24.073Z","modified":"2026-07-16T13:30:39.483Z","cvss":[{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-73"],"updated_at":"2026-11-02T14:12:28.771746Z"}],"osv":[{"id":"CVE-2026-53449","title":"Coturn: Arbitrary File Write via CLI psd Command","description":"Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.0, the psd print sessions dump CLI command in coturn takes a filename argument and directly passes it to fopen with no path validation. An authenticated admin with CLI access can overwrite arbitrary files writable by the coturn process because the command string is used as-is after stripping the psd prefix and leading spaces, allowing truncation and overwrite with session dump data. This issue is fixed in version 4.13.0.","status":"published","published":"2026-07-10T17:59:11.161Z","modified":"2026-10-28T10:51:59.139512127Z","cvss":[{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H","level":"medium"}],"cwes":["CWE-73"],"updated_at":"2026-11-02T15:45:07.787185Z"},{"id":"DEBIAN-CVE-2026-53449","description":"Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.0, the psd print sessions dump CLI command in coturn takes a filename argument and directly passes it to fopen with no path validation. An authenticated admin with CLI access can overwrite arbitrary files writable by the coturn process because the command string is used as-is after stripping the psd prefix and leading spaces, allowing truncation and overwrite with session dump data. This issue is fixed in version 4.13.0.","status":"published","published":"2026-07-10T19:17:24.073Z","modified":"2026-10-10T16:00:06.760336807Z","cvss":[{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:57.236551Z"},{"id":"UBUNTU-CVE-2026-53449","description":"Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.0, the psd print sessions dump CLI command in coturn takes a filename argument and directly passes it to fopen with no path validation. An authenticated admin with CLI access can overwrite arbitrary files writable by the coturn process because the command string is used as-is after stripping the psd prefix and leading spaces, allowing truncation and overwrite with session dump data. This issue is fixed in version 4.13.0.","status":"published","published":"2026-07-10T19:17:00Z","modified":"2026-10-17T13:00:24.771819593Z","cvss":[{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T16:56:41.382716Z"},{"id":"openSUSE-SU-2026:11617-1","title":"coturn-4.17.2-1.1 on GA media","description":"These are all security issues fixed in the coturn-4.17.2-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-08-27T00:00:00Z","modified":"2026-08-28T18:23:08.654818419Z","updated_at":"2026-11-02T16:58:39.516824Z"}]}}