{"id":"CVE-2022-1834","aliases":["ALPINE-CVE-2022-1834","DEBIAN-CVE-2022-1834","DLA-3041-1","DSA-5158-1","EUVD-2022-25110","GHSA-qq6h-hx9q-4fxv","MGASA-2022-0221","RHSA-2022:4887","RHSA-2022:4888","RHSA-2022:4889","RHSA-2022:4890","RHSA-2022:4891","RHSA-2022:4892","RLSA-2022:4887","SUSE-SU-2022:2062-1","UBUNTU-CVE-2022-1834","USN-5512-1","openSUSE-SU-2024:12117-1"],"status":"published","title":"When displaying the sender of an email, and the sender name contained the Braille Pattern Blank...","description":"When displaying the sender of an email, and the sender name contained the Braille Pattern Blank space character multiple times, Thunderbird would have displayed all the spaces. This could have been used by an attacker to send an email message with the attacker's digital signature, that was shown with an arbitrary sender email address chosen by the attacker. If the sender name started with a false email address, followed by many Braille space characters, the attacker's email address was not visible. Because Thunderbird compared the invisible sender address with the signature's email address, if the signing key or certificate was accepted by Thunderbird, the email was shown as having a valid digital signature. This vulnerability affects Thunderbird \u003c 91.10.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00395,"percentile":0.34139,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2022-06-01T00:00:00Z","modified":"2026-11-03T08:02:01Z","fixes":[{"ecosystem":"Alpine:v3.16","package":"thunderbird","fixed_in":["91.10.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"thunderbird","fixed_in":["91.10.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"thunderbird","fixed_in":["91.10.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"thunderbird","fixed_in":["91.10.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"thunderbird","fixed_in":["91.10.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"thunderbird","fixed_in":["91.10.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"thunderbird","fixed_in":["91.10.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"thunderbird","fixed_in":["91.10.0-r0"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"thunderbird","fixed_in":["1:91.10.0-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"thunderbird","fixed_in":["1:91.10.0-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"thunderbird","fixed_in":["1:91.10.0-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"thunderbird","fixed_in":["1:91.11.0+build2-0ubuntu0.18.04.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"thunderbird","fixed_in":["1:91.11.0+build2-0ubuntu0.20.04.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:22.04:LTS","package":"thunderbird","fixed_in":["1:91.11.0+build2-0ubuntu0.22.04.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.16","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"91.10.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"91.10.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"91.10.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"91.10.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"91.10.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"91.10.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"91.10.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"91.10.0-r0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:91.10.0-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:91.10.0-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:91.10.0-1"}]}]},{"source":"osv","ecosystem":"Debian:9","package":"thunderbird","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:91.10.0-1~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","1:6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displaying the sender of an email, and the sender name contained the Braille Pattern Blank space character multiple times, Thunderbird would have displayed all the spaces. This could have been used by an attacker to send an email message with the attacker's digital signature, that was shown with an arbitrary sender email address chosen by the attacker. If the sender name started with a false email address, followed by many Braille space characters, the attacker's email address was not visible. Because Thunderbird compared the invisible sender address with the signature's email address, if the signing key or certificate was accepted by Thunderbird, the email was shown as having a valid digital signature. This vulnerability affects Thunderbird \u003c 91.10.","status":"published","published":"2022-12-22T00:00:00Z","modified":"2025-04-16T15:15:38.162Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:34:38.922686Z"}],"euvd":[{"id":"EUVD-2022-25110","description":"When displaying the sender of an email, and the sender name contained the Braille Pattern Blank space character multiple times, Thunderbird would have displayed all the spaces. This could have been used by an attacker to send an email message with the attacker's digital signature, that was shown with an arbitrary sender email address chosen by the attacker. If the sender name started with a false email address, followed by many Braille space characters, the attacker's email address was not visible. Because Thunderbird compared the invisible sender address with the signature's email address, if the signing key or certificate was accepted by Thunderbird, the email was shown as having a valid digital signature. This vulnerability affects Thunderbird \u003c 91.10.","status":"published","published":"2022-12-22T00:00:00Z","modified":"2025-04-16T15:15:38Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T20:52:25.343198Z"}],"ghsa":[{"id":"GHSA-qq6h-hx9q-4fxv","title":"When displaying the sender of an email, and the sender name contained the Braille Pattern Blank...","description":"When displaying the sender of an email, and the sender name contained the Braille Pattern Blank space character multiple times, Thunderbird would have displayed all the spaces. This could have been used by an attacker to send an email message with the attacker's digital signature, that was shown with an arbitrary sender email address chosen by the attacker. If the sender name started with a false email address, followed by many Braille space characters, the attacker's email address was not visible. Because Thunderbird compared the invisible sender address with the signature's email address, if the signing key or certificate was accepted by Thunderbird, the email was shown as having a valid digital signature. This vulnerability affects Thunderbird \u003c 91.10.","status":"published","published":"2022-12-22T21:30:30Z","modified":"2025-04-16T18:32:40Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:01:35.927372Z"}],"nvd":[{"id":"CVE-2022-1834","description":"When displaying the sender of an email, and the sender name contained the Braille Pattern Blank space character multiple times, Thunderbird would have displayed all the spaces. This could have been used by an attacker to send an email message with the attacker's digital signature, that was shown with an arbitrary sender email address chosen by the attacker. If the sender name started with a false email address, followed by many Braille space characters, the attacker's email address was not visible. Because Thunderbird compared the invisible sender address with the signature's email address, if the signing key or certificate was accepted by Thunderbird, the email was shown as having a valid digital signature. This vulnerability affects Thunderbird \u003c 91.10.","status":"published","published":"2022-12-22T20:15:13.513Z","modified":"2026-06-17T04:23:11.873Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:07:34.388163Z"}],"osv":[{"id":"ALPINE-CVE-2022-1834","description":"When displaying the sender of an email, and the sender name contained the Braille Pattern Blank space character multiple times, Thunderbird would have displayed all the spaces. This could have been used by an attacker to send an email message with the attacker's digital signature, that was shown with an arbitrary sender email address chosen by the attacker. If the sender name started with a false email address, followed by many Braille space characters, the attacker's email address was not visible. Because Thunderbird compared the invisible sender address with the signature's email address, if the signing key or certificate was accepted by Thunderbird, the email was shown as having a valid digital signature. This vulnerability affects Thunderbird \u003c 91.10.","status":"published","published":"2022-12-22T20:15:13.513Z","modified":"2026-11-03T07:30:49.026904656Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T07:50:01.054176Z"},{"id":"CVE-2022-1834","description":"When displaying the sender of an email, and the sender name contained the Braille Pattern Blank space character multiple times, Thunderbird would have displayed all the spaces. This could have been used by an attacker to send an email message with the attacker's digital signature, that was shown with an arbitrary sender email address chosen by the attacker. If the sender name started with a false email address, followed by many Braille space characters, the attacker's email address was not visible. Because Thunderbird compared the invisible sender address with the signature's email address, if the signing key or certificate was accepted by Thunderbird, the email was shown as having a valid digital signature. This vulnerability affects Thunderbird \u003c 91.10.","status":"published","published":"2022-12-22T20:15:13.513Z","modified":"2026-04-16T04:33:45.9857344Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:23.245966Z"},{"id":"DEBIAN-CVE-2022-1834","description":"When displaying the sender of an email, and the sender name contained the Braille Pattern Blank space character multiple times, Thunderbird would have displayed all the spaces. This could have been used by an attacker to send an email message with the attacker's digital signature, that was shown with an arbitrary sender email address chosen by the attacker. If the sender name started with a false email address, followed by many Braille space characters, the attacker's email address was not visible. Because Thunderbird compared the invisible sender address with the signature's email address, if the signing key or certificate was accepted by Thunderbird, the email was shown as having a valid digital signature. This vulnerability affects Thunderbird \u003c 91.10.","status":"published","published":"2022-12-22T20:15:13.513Z","modified":"2026-11-03T08:02:01.969159441Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T08:24:50.542442Z"},{"id":"RHSA-2022:4887","title":"Red Hat Security Advisory: thunderbird security update","status":"published","published":"2024-09-16T08:16:15Z","modified":"2025-11-22T12:34:55Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:53:09.62945Z"},{"id":"RHSA-2022:4888","title":"Red Hat Security Advisory: thunderbird security update","status":"published","published":"2024-09-16T08:16:22Z","modified":"2025-11-22T12:34:56Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:53:09.62945Z"},{"id":"RHSA-2022:4889","title":"Red Hat Security Advisory: thunderbird security update","status":"published","published":"2024-09-16T08:16:08Z","modified":"2025-11-22T12:34:57Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:53:09.62945Z"},{"id":"RHSA-2022:4890","title":"Red Hat Security Advisory: thunderbird security update","status":"published","published":"2024-09-16T08:16:30Z","modified":"2025-11-22T12:34:57Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:53:09.62945Z"},{"id":"RHSA-2022:4891","title":"Red Hat Security Advisory: thunderbird security update","status":"published","published":"2024-09-16T08:15:35Z","modified":"2026-06-26T10:59:19Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:53:09.62945Z"},{"id":"RHSA-2022:4892","title":"Red Hat Security Advisory: thunderbird security update","status":"published","published":"2024-09-16T08:15:55Z","modified":"2025-11-22T12:34:58Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:53:09.62945Z"},{"id":"RLSA-2022:4887","title":"Important: thunderbird security update","description":"Mozilla Thunderbird is a standalone mail and newsgroup client.\n\nThis update upgrades Thunderbird to version 91.10.0.\n\nSecurity Fix(es):\n\n* Mozilla: Braille space character caused incorrect sender email to be shown for a digitally signed email (CVE-2022-1834)\n\n* Mozilla: Cross-Origin resource's length leaked (CVE-2022-31736)\n\n* Mozilla: Heap buffer overflow in WebGL (CVE-2022-31737)\n\n* Mozilla: Browser window spoof using fullscreen mode (CVE-2022-31738)\n\n* Mozilla: Register allocation problem in WASM on arm64 (CVE-2022-31740)\n\n* Mozilla: Uninitialized variable leads to invalid memory read (CVE-2022-31741)\n\n* Mozilla: Memory safety bugs fixed in Firefox 101 and Firefox ESR 91.10 (CVE-2022-31747)\n\n* Mozilla: Querying a WebAuthn token with a large number of allowCredential entries may have leaked cross-origin information (CVE-2022-31742)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2022-06-02T07:48:48Z","modified":"2026-02-05T02:45:08.384671Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:53:24.322216Z"},{"id":"UBUNTU-CVE-2022-1834","description":"When displaying the sender of an email, and the sender name contained the Braille Pattern Blank space character multiple times, Thunderbird would have displayed all the spaces. This could have been used by an attacker to send an email message with the attacker's digital signature, that was shown with an arbitrary sender email address chosen by the attacker. If the sender name started with a false email address, followed by many Braille space characters, the attacker's email address was not visible. Because Thunderbird compared the invisible sender address with the signature's email address, if the signing key or certificate was accepted by Thunderbird, the email was shown as having a valid digital signature. This vulnerability affects Thunderbird \u003c 91.10.","status":"published","published":"2022-06-01T00:00:00Z","modified":"2026-04-22T13:14:04.57999Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T16:53:52.391598Z"},{"id":"DLA-3041-1","title":"thunderbird - security update","status":"published","published":"2022-06-03T00:00:00Z","modified":"2026-03-09T01:20:43.929671Z","updated_at":"2026-11-02T15:46:11.189256Z"},{"id":"DSA-5158-1","title":"thunderbird - security update","status":"published","published":"2022-06-04T00:00:00Z","modified":"2026-03-09T02:10:27.137168Z","updated_at":"2026-11-02T15:46:17.543497Z"},{"id":"MGASA-2022-0221","title":"Updated thunderbird packages fix security vulnerability","description":"When displaying the sender of an email, and the sender name contained the\nBraille Pattern Blank space character multiple times, Thunderbird would have\ndisplayed all the spaces. This could have been used by an attacker to send an\nemail message with the attacker's digital signature, that was shown with an\narbitrary sender email address chosen by the attacker. If the sender name\nstarted with a false email address, followed by many Braille space characters,\nthe attacker's email address was not visible. Because Thunderbird compared the\ninvisible sender address with the signature's email address, if the signing\nkey or certificate was accepted by Thunderbird, the email was shown as having\na valid digital signature (CVE-2022-1834).\n\nA malicious website could have learned the size of a cross-origin resource\nthat supported Range requests (CVE-2022-31736).\n\nA malicious webpage could have caused an out-of-bounds write in WebGL, leading\nto memory corruption and a potentially exploitable crash (CVE-2022-31737).\n\nWhen exiting fullscreen mode, an iframe could have confused the browser about\nthe current state of fullscreen, resulting in potential user confusion or\nspoofing attacks (CVE-2022-31738).\n\nOn arm64, WASM code could have resulted in incorrect assembly generation\nleading to a register allocation problem, and a potentially exploitable crash\n(CVE-2022-31740).\n\nA crafted CMS message could have been processed incorrectly, leading to an\ninvalid memory read, and potentially further memory corruption\n(CVE-2022-31741).\n\nAn attacker could have exploited a timing attack by sending a large number of\nallowCredential entries and detecting the difference between invalid key\nhandles and cross-origin key handles. This could have led to cross-origin\naccount linking in violation of WebAuthn goals (CVE-2022-31742).\n\nMozilla developers Andrew McCreight, Nicolas B. Pierron, and the Mozilla\nFuzzing Team reported memory safety bugs present in Thunderbird 91.9. Some of\nthese bugs showed evidence of memory corruption and we presume that with\nenough effort some of these could have been exploited to run arbitrary code\n","status":"published","published":"2022-06-04T20:25:39Z","modified":"2026-04-16T04:43:25.567239734Z","updated_at":"2026-11-02T15:49:41.849028Z"},{"id":"openSUSE-SU-2024:12117-1","title":"MozillaThunderbird-91.10.0-1.1 on GA media","description":"These are all security issues fixed in the MozillaThunderbird-91.10.0-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:03:36.83211Z","updated_at":"2026-11-02T16:58:35.485255Z"},{"id":"SUSE-SU-2022:2062-1","title":"Security update for MozillaThunderbird","description":"This update for MozillaThunderbird fixes the following issues:\n\nUpdate to Mozilla Thunderbird 91.9.1\n\nMFSA 2022-19 (bsc#1199768):\n\n- CVE-2022-1802: Prototype pollution in Top-Level Await implementation (bmo#1770137).\n- CVE-2022-1529: Untrusted input used in JavaScript object indexing, leading to prototype pollution (bmo#1770048).\n  \nUpdate to Mozilla Thunderbird 91.10\n\nMFSA 2022-22 (bsc#1200027):\n\n- CVE-2022-31736: Cross-Origin resource's length leaked (bmo#1735923)\n- CVE-2022-31737: Heap buffer overflow in WebGL (bmo#1743767)\n- CVE-2022-31738: Browser window spoof using fullscreen mode (bmo#1756388)\n- CVE-2022-31739: Attacker-influenced path traversal when saving downloaded files (bmo#1765049)\n- CVE-2022-31740: Register allocation problem in WASM on arm64 (bmo#1766806)\n- CVE-2022-31741: Uninitialized variable leads to invalid memory read (bmo#1767590) \n- CVE-2022-1834: Braille space character caused incorrect sender email to be  shown for a digitally signed email (bmo#1767816)\n- CVE-2022-31742: Querying a WebAuthn token with a large number of allowCredential entries may have leaked cross-origin information (bmo#1730434)\n- CVE-2022-31747: Memory safety bugs fixed in Thunderbird 91.10 (bmo#1760765, bmo#1765610, bmo#1766283, bmo#1767365, bmo#1768559, bmo#1768734)\n","status":"published","published":"2022-06-13T13:34:30Z","modified":"2026-02-04T03:08:56.144195Z","updated_at":"2026-11-02T15:53:50.513981Z"},{"id":"USN-5512-1","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, an\nattacker could potentially exploit these to cause a denial of service,\nobtain sensitive information, spoof the UI, bypass CSP restrictions, or\nexecute arbitrary code. (CVE-2022-2200, CVE-2022-31736, CVE-2022-31737,\nCVE-2022-31738, CVE-2022-31740, CVE-2022-31741, CVE-2022-31742,\nCVE-2022-31744, CVE-2022-31747, CVE-2022-34468, CVE-2022-34470,\nCVE-2022-34479, CVE-2022-34481, CVE-2022-34484)\n\nIt was discovered that an unavailable PAC file caused OCSP requests to\nbe blocked, resulting in incorrect error pages being displayed.\n(CVE-2022-34472)\n\nIt was discovered that the Braille space character could be used to\ncause Thunderbird to display the wrong sender address for signed messages.\nAn attacker could potentially exploit this to trick the user into\nbelieving a message had been sent from somebody they trusted.\n(CVE-2022-1834)\n\nIt was discovered that Thunderbird would consider an email with a\nmismatched OpenPGP signature date as valid. An attacker could potentially\nexploit this by replaying an older message in order to trick the user into\nbelieving that the statements in the message are current. (CVE-2022-2226)\n","status":"published","published":"2022-07-14T09:28:00Z","modified":"2026-04-22T10:25:10.21083Z","updated_at":"2026-11-02T16:58:16.20937Z"}]}}