{"id":"CVE-2021-29950","aliases":["DEBIAN-CVE-2021-29950","DLA-2609-1","DSA-4876-1","EUVD-2021-16409","GHSA-4ghf-pq62-2jfh","RHSA-2021:1190","RHSA-2021:1192","RHSA-2021:1193","RHSA-2021:1201","SUSE-SU-2021:1854-1","UBUNTU-CVE-2021-29950","USN-4936-1","openSUSE-SU-2021:1854-1"],"status":"published","title":"Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key...","description":"Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import task. If the task runs into a failure, the secret key may remain in memory in its unprotected state. This vulnerability affects Thunderbird \u003c 78.8.1.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00853,"percentile":0.58724,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-312"],"published":"2021-03-25T00:00:00Z","modified":"2026-10-23T18:03:12Z","fixes":[{"ecosystem":"Debian:12","package":"thunderbird","fixed_in":["1:78.9.0-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"thunderbird","fixed_in":["1:78.9.0-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"thunderbird","fixed_in":["1:78.9.0-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"thunderbird","fixed_in":["1:78.8.1+build1-0ubuntu0.18.04.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"thunderbird","fixed_in":["1:78.8.1+build1-0ubuntu0.20.04.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:78.9.0-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:78.9.0-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:78.9.0-1"}]}]},{"source":"osv","ecosystem":"Debian:9","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:78.9.0-1~deb9u1"}]}],"versions":["1.5-4","1.5.0.2-1","1.5.0.2-2","1.5.0.2-3","1.5.0.4-1","1.5.0.4-2","1.5.0.4-3","1.5.0.5-1","1.5.0.7-1","1.5.0.7-2","1:52.4.0-1","1:52.4.0-1~deb7u1","1:52.4.0-1~deb8u1","1:52.4.0-1~deb9u1","1:52.4.0-2~exp1","1:52.5.0-1","1:52.5.0-1~deb7u1","1:52.5.0-1~deb8u1","1:52.5.0-1~deb9u1","1:52.5.2-1","1:52.5.2-1~deb7u1","1:52.5.2-2","1:52.5.2-2~deb8u1","1:52.5.2-2~deb9u1","1:52.6.0-1","1:52.6.0-1+alpha.1","1:52.6.0-1+alpha.2","1:52.6.0-1~deb7u1","1:52.6.0-1~deb8u1","1:52.6.0-1~deb9u1","1:52.7.0-1","1:52.7.0-1~deb7u1","1:52.7.0-1~deb8u1","1:52.7.0-1~deb9u1","1:52.8.0-1","1:52.8.0-1~deb7u1","1:52.8.0-1~deb8u1","1:52.8.0-1~deb9u1","1:52.9.0-1","1:52.9.1-1","1:52.9.1-1~deb8u1","1:52.9.1-1~deb9u1","1:58.0~b3-1","1:60.0-1","1:60.0-2","1:60.0-2~deb9u1","1:60.0-3","1:60.0-3~deb9u1","1:60.0~b10-1","1:60.0~b2-1","1:60.0~b3-1","1:60.0~b4-1","1:60.0~b5-1","1:60.0~b6-1","1:60.0~b9-1","1:60.0~b9-2","1:60.2.1-1","1:60.2.1-2~deb9u1","1:60.3.0-1","1:60.3.0-1~deb8u1","1:60.3.0-1~deb9u1","1:60.3.1-1","1:60.4.0-1","1:60.4.0-1~deb8u1","1:60.4.0-1~deb9u1","1:60.5.0-1","1:60.5.0-2","1:60.5.0-3","1:60.5.1-1","1:60.5.1-1~deb8u1","1:60.5.1-1~deb9u1","1:60.6.1-1","1:60.6.1-1~deb8u1","1:60.6.1-1~deb9u1","1:60.7.0-1","1:60.7.0-1~deb8u1","1:60.7.0-1~deb9u1","1:60.7.1-1","1:60.7.1-1~deb8u1","1:60.7.1-1~deb9u1","1:60.7.2-1","1:60.7.2-1~deb8u1","1:60.7.2-1~deb9u1","1:60.8.0-1","1:60.8.0-1~deb10u1","1:60.8.0-1~deb8u1","1:60.8.0-1~deb9u1","1:60.8.0-2","1:60.9.0-1","1:60.9.0-1~deb10u1","1:60.9.0-1~deb8u1","1:60.9.0-1~deb9u1","1:65.0~b1-1","1:66.0~b1-1","1:67.0~b3-1","1:68.0~b1-1","1:68.1.1-1~exp1","1:68.1.2-1~exp1","1:68.10.0-1","1:68.10.0-1~deb10u1","1:68.10.0-1~deb9u1","1:68.11.0-1","1:68.11.0-1~deb10u1","1:68.11.0-1~deb9u1","1:68.11.0-2","1:68.11.0-3","1:68.12.0-1","1:68.12.0-1~deb10u1","1:68.12.0-1~deb9u1","1:68.12.0-1~deb9u2","1:68.2.1-1","1:68.2.2-1","1:68.2.2-1~deb10u1","1:68.2.2-1~deb8u1","1:68.2.2-1~deb9u1","1:68.3.0-1","1:68.3.0-2","1:68.3.0-2~deb10u1","1:68.3.0-2~deb8u1","1:68.3.0-2~deb9u1","1:68.3.1-1","1:68.4.1-1","1:68.4.1-1~deb10u1","1:68.4.1-1~deb8u1","1:68.4.1-1~deb9u1","1:68.4.2-1","1:68.5.0-1","1:68.5.0-1~deb10u1","1:68.5.0-1~deb8u1","1:68.5.0-1~deb9u1","1:68.6.0-1","1:68.6.0-1~deb10u1","1:68.6.0-1~deb8u1","1:68.6.0-1~deb9u1","1:68.7.0-1","1:68.7.0-1~deb10u1","1:68.7.0-1~deb8u1","1:68.7.0-1~deb9u1","1:68.8.0-1","1:68.8.0-1~deb10u1","1:68.8.0-1~deb8u1","1:68.8.0-1~deb9u1","1:68.8.1-1","1:68.9.0-1","1:68.9.0-1~deb10u1","1:68.9.0-1~deb8u1","1:68.9.0-1~deb8u2","1:68.9.0-1~deb9u1","1:76.0~b1-1","1:76.0~b2-1","1:77.0~b1-1","1:77.0~b2-1","1:77.0~b3-1","1:78.0-1","1:78.0.1-1","1:78.0~b1-1","1:78.0~b2-1","1:78.1.0-1","1:78.1.1-1","1:78.2.0-1","1:78.2.1-1","1:78.2.2-1","1:78.3.1-1","1:78.3.1-2","1:78.3.1-2~deb10u1","1:78.3.1-2~deb10u2","1:78.3.1-2~deb9u1","1:78.3.2-1","1:78.3.3-1","1:78.4.0-1","1:78.4.0-1~deb10u1","1:78.4.0-1~deb9u1","1:78.4.1-1","1:78.4.2-1","1:78.4.2-1~deb10u1","1:78.4.2-1~deb9u1","1:78.5.0-1","1:78.5.0-1~deb10u1","1:78.5.0-1~deb9u1","1:78.5.1-1","1:78.5.1-1~deb10u1","1:78.5.1-1~deb9u1","1:78.6.0-1","1:78.6.0-1~deb10u1","1:78.6.0-1~deb9u1","1:78.6.1-1","1:78.7.0-1","1:78.7.0-1~deb10u1","1:78.7.0-1~deb9u1","1:78.7.1-1","1:78.8.0-1","1:78.8.0-1~deb10u1","1:78.8.0-1~deb9u1"],"bundled":5},{"source":"osv","ecosystem":"Debian:10","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:78.9.0-1~deb10u1"}]}],"versions":["1:60.7.2-1","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unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import task. If the task runs into a failure, the secret key may remain in memory in its unprotected state. This vulnerability affects Thunderbird \u003c 78.8.1.","status":"published","published":"2021-06-24T13:18:46Z","modified":"2024-08-03T22:18:03.2Z","updated_at":"2026-11-02T14:33:06.658806Z"}],"euvd":[{"id":"EUVD-2021-16409","description":"Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import task. If the task runs into a failure, the secret key may remain in memory in its unprotected state. This vulnerability affects Thunderbird \u003c 78.8.1.","status":"published","published":"2021-06-24T13:18:46Z","modified":"2024-08-03T22:18:03Z","updated_at":"2026-11-03T03:24:43.413555Z"}],"ghsa":[{"id":"GHSA-4ghf-pq62-2jfh","title":"Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key...","description":"Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import task. If the task runs into a failure, the secret key may remain in memory in its unprotected state. This vulnerability affects Thunderbird \u003c 78.8.1.","status":"published","published":"2022-05-24T19:06:09Z","modified":"2023-01-29T05:08:06Z","cwes":["CWE-312"],"updated_at":"2026-11-02T14:46:12.604648Z"}],"nvd":[{"id":"CVE-2021-29950","description":"Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import task. If the task runs into a failure, the secret key may remain in memory in its unprotected state. This vulnerability affects Thunderbird \u003c 78.8.1.","status":"published","published":"2021-06-24T14:15:09.917Z","modified":"2026-06-17T03:48:29.833Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-312"],"updated_at":"2026-11-02T14:06:54.892562Z"}],"osv":[{"id":"CVE-2021-29950","description":"Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import task. If the task runs into a failure, the secret key may remain in memory in its unprotected state. This vulnerability affects Thunderbird \u003c 78.8.1.","status":"published","published":"2021-06-24T14:15:09.917Z","modified":"2026-03-14T10:57:20.871533Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:19.483607Z"},{"id":"DEBIAN-CVE-2021-29950","description":"Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import task. If the task runs into a failure, the secret key may remain in memory in its unprotected state. This vulnerability affects Thunderbird \u003c 78.8.1.","status":"published","published":"2021-06-24T14:15:09.917Z","modified":"2026-10-23T18:03:12.565032862Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:34.94143Z"},{"id":"RHSA-2021:1190","title":"Red Hat Security Advisory: thunderbird security update","status":"published","published":"2024-09-16T05:39:29Z","modified":"2025-11-22T12:19:03Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.071325Z"},{"id":"RHSA-2021:1192","title":"Red Hat Security Advisory: thunderbird security update","status":"published","published":"2024-09-16T05:39:36Z","modified":"2026-06-26T10:53:45Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.071325Z"},{"id":"RHSA-2021:1193","title":"Red Hat Security Advisory: thunderbird security update","status":"published","published":"2024-09-16T05:39:43Z","modified":"2025-11-22T12:19:04Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.071325Z"},{"id":"RHSA-2021:1201","title":"Red Hat Security Advisory: thunderbird security update","status":"published","published":"2024-09-16T05:39:49Z","modified":"2025-11-22T12:19:06Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.071325Z"},{"id":"UBUNTU-CVE-2021-29950","description":"Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import task. If the task runs into a failure, the secret key may remain in memory in its unprotected state. This vulnerability affects Thunderbird \u003c 78.8.1.","status":"published","published":"2021-04-22T14:54:00Z","modified":"2026-04-22T12:51:36.538894Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:54:26.779273Z"},{"id":"DLA-2609-1","title":"thunderbird - security update","status":"published","published":"2021-03-26T00:00:00Z","modified":"2026-03-09T01:18:53.62665Z","updated_at":"2026-11-02T15:46:10.712745Z"},{"id":"DSA-4876-1","title":"thunderbird - security update","status":"published","published":"2021-03-25T00:00:00Z","modified":"2026-03-09T02:10:03.977197Z","updated_at":"2026-11-02T15:46:17.19998Z"},{"id":"openSUSE-SU-2021:1854-1","title":"Security update for MozillaThunderbird","description":"This update for MozillaThunderbird fixes the following issues:\n\n- Mozilla Thunderbird 78.10.2\n- CVE-2021-29957: Fixed partial protection of inline OpenPGP message not indicated (bsc#1186198).\n- CVE-2021-29956: Fixed Thunderbird stored OpenPGP secret keys without master password protection (bsc#1186199).\n- CVE-2021-29951: Fixed Thunderbird Maintenance Service could have been started or stopped by domain users (bsc#1185633).\n- CVE-2021-29950: Fixed logic issue potentially leaves key material unlocked (bsc#1185086).\n","status":"published","published":"2021-07-10T17:54:23Z","modified":"2026-02-04T02:38:26.923307Z","updated_at":"2026-11-02T16:58:32.266854Z"},{"id":"SUSE-SU-2021:1854-1","title":"Security update for MozillaThunderbird","description":"This update for MozillaThunderbird fixes the following issues:\n\n- Mozilla Thunderbird 78.10.2\n- CVE-2021-29957: Fixed partial protection of inline OpenPGP message not indicated (bsc#1186198).\n- CVE-2021-29956: Fixed Thunderbird stored OpenPGP secret keys without master password protection (bsc#1186199).\n- CVE-2021-29951: Fixed Thunderbird Maintenance Service could have been started or stopped by domain users (bsc#1185633).\n- CVE-2021-29950: Fixed logic issue potentially leaves key material unlocked (bsc#1185086).\n","status":"published","published":"2021-06-04T06:54:13Z","modified":"2026-02-04T04:34:42.697343Z","updated_at":"2026-11-02T15:53:49.138643Z"},{"id":"USN-4936-1","title":"thunderbird vulnerabilities","description":"Multiple security issues were discovered in Thunderbird. If a user were\ntricked into opening a specially crafted website in a browsing context,\nan attacker could potentially exploit these to cause a denial of service,\nobtain sensitive information, or execute arbitrary code. (CVE-2021-23968,\nCVE-2021-23969, CVE-2021-23973, CVE-2021-23978)\n\nIt was discovered that Thunderbird may keep key material in memory in some\ncircumstances. A local attacker could potentially exploit this to obtain\nprivate keys. (CVE-2021-29950)\n","status":"published","published":"2021-05-06T13:13:01Z","modified":"2026-04-22T10:14:23.766193Z","updated_at":"2026-11-02T16:58:15.159055Z"}]}}