{"id":"CVE-2021-27351","aliases":["DEBIAN-CVE-2021-27351","EUVD-2021-14111","GHSA-cc4r-2rwj-vx7x","UBUNTU-CVE-2021-27351"],"status":"published","title":"The Terminate Session feature in the Telegram application through 7.2.1 for Android, and through...","description":"The Terminate Session feature in the Telegram application through 7.2.1 for Android, and through 2.4.7 for Windows and UNIX, fails to invalidate a recently active session.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00843,"percentile":0.58382,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-613"],"published":"2021-02-19T18:57:52Z","modified":"2026-10-23T18:02:58Z","fixes":[{"ecosystem":"Debian:12","package":"telegram-desktop","fixed_in":["2.6.1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"telegram-desktop","fixed_in":["2.6.1-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"telegram-desktop","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.1-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"telegram-desktop","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.1-1"}]}],"versions":["1.0.14-1","1.0.29-1","1.1.0-1","1.1.10-1","1.1.18-1","1.1.19-1","1.1.19-2","1.1.23-1","1.1.23-1~bpo9+1","1.1.23-2","1.1.23-3","1.2.1-1","1.2.1-2","1.2.15-1","1.2.17-1","1.2.6-1","1.2.6-2","1.3.10-1","1.3.10-2","1.3.14-1","1.3.7-1","1.4.0-1","1.5.11-1","1.5.2-1","1.5.4-1","1.5.8-1","1.7.0-1","1.7.14-1","1.8.15-1","1.8.15-2","1.8.15-2~bpo10+1","1.8.2-1","1.8.2-2","1.8.4-1","1.8.8-1","1.9.14+ds-1","1.9.14+ds-2","1.9.21+ds-1","1.9.8~slim-1","2.0.1+ds-1","2.1.0+ds-1","2.1.4+ds-1","2.1.5+ds-1","2.1.7+ds-1","2.1.7+ds-2","2.2.0+ds-1","2.2.0+ds-2","2.2.0+ds-2~bpo10+1","2.2.0+ds-3","2.2.0+ds-4","2.2.0+ds-5","2.5.8+ds-1","2.5.8+ds-2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"telegram-desktop","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.23-1","1.1.23-1build1","1.1.23-2","1.1.23-3","1.2.6-1","1.2.6-2","1.2.6-2build1","1.2.6-2build2","1.2.6-2build3","1.2.15-1","1.2.15-1build1","1.2.17-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"telegram-desktop","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.8-1","1.8.15-2","1.9.8~slim-1","1.9.14+ds-1","1.9.14+ds-2","1.9.21+ds-1","2.0.1+ds-1","2.0.1+ds-1build1","2.1.7+ds-2~ubuntu20.04.1","3.1.1+ds-1~ubuntu20.04.1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"telegram-desktop","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.1+ds-1","3.5.2+ds-1","3.6.1+ds-2build1"]}],"products":[{"vendor":"telegram","product":"telegram"}],"references":[{"url":"https://0ffsecninja.github.io/Telegram:CVE-2021-2735.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","report"]},{"url":"https://security.gentoo.org/glsa/202105-07","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27351"},{"url":"https://github.com/advisories/GHSA-cc4r-2rwj-vx7x"},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-27351","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-27351","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-27351","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-27351","description":"The Terminate Session feature in the Telegram application through 7.2.1 for Android, and through 2.4.7 for Windows and UNIX, fails to invalidate a recently active session.","status":"published","published":"2021-02-19T18:57:52Z","modified":"2024-08-03T20:48:16.359Z","updated_at":"2026-11-02T14:33:04.679189Z"}],"euvd":[{"id":"EUVD-2021-14111","description":"The Terminate Session feature in the Telegram application through 7.2.1 for Android, and through 2.4.7 for Windows and UNIX, fails to invalidate a recently active session.","status":"published","published":"2021-02-19T18:57:52Z","modified":"2024-08-03T20:48:16Z","updated_at":"2026-11-03T03:24:49.368497Z"}],"ghsa":[{"id":"GHSA-cc4r-2rwj-vx7x","title":"The Terminate Session feature in the Telegram application through 7.2.1 for Android, and through...","description":"The Terminate Session feature in the Telegram application through 7.2.1 for Android, and through 2.4.7 for Windows and UNIX, fails to invalidate a recently active session.","status":"published","published":"2022-05-24T17:42:42Z","modified":"2023-01-29T05:05:29Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-613"],"updated_at":"2026-11-02T14:45:48.396935Z"}],"nvd":[{"id":"CVE-2021-27351","description":"The Terminate Session feature in the Telegram application through 7.2.1 for Android, and through 2.4.7 for Windows and UNIX, fails to invalidate a recently active session.","status":"published","published":"2021-02-19T19:15:12.69Z","modified":"2026-06-17T03:44:42.007Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-613"],"updated_at":"2026-11-02T14:06:50.031227Z"}],"osv":[{"id":"CVE-2021-27351","description":"The Terminate Session feature in the Telegram application through 7.2.1 for Android, and through 2.4.7 for Windows and UNIX, fails to invalidate a recently active session.","status":"published","published":"2021-02-19T19:15:12.69Z","modified":"2026-03-15T22:39:56.902324Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:18.778776Z"},{"id":"DEBIAN-CVE-2021-27351","description":"The Terminate Session feature in the Telegram application through 7.2.1 for Android, and through 2.4.7 for Windows and UNIX, fails to invalidate a recently active session.","status":"published","published":"2021-02-19T19:15:12.69Z","modified":"2026-10-23T18:02:58.013950184Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:34.94143Z"},{"id":"UBUNTU-CVE-2021-27351","description":"The Terminate Session feature in the Telegram application through 7.2.1 for Android, and through 2.4.7 for Windows and UNIX, fails to invalidate a recently active session.","status":"published","published":"2021-02-19T19:15:00Z","modified":"2025-10-24T04:50:11Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:26.779273Z"}]}}