{"id":"SUSE-SU-2026:1163-1","summary":"Security update for MozillaThunderbird","details":"This update for MozillaThunderbird fixes the following issues:\n\nUpdate to Mozilla Thunderbird 140.9 (MFSA 2026-24, bsc#1260083):\n\n- CVE-2026-3889: Spoofing issue in Thunderbird\n- CVE-2026-4371: Out of bounds read in IMAP parsing\n- CVE-2026-4684: Race condition, use-after-free in the Graphics: WebRender component\n- CVE-2026-4685: Incorrect boundary conditions in the Graphics: Canvas2D component\n- CVE-2026-4686: Incorrect boundary conditions in the Graphics: Canvas2D component\n- CVE-2026-4687: Sandbox escape due to incorrect boundary conditions in the Telemetry component\n- CVE-2026-4688: Sandbox escape due to use-after-free in the Disability Access APIs component\n- CVE-2026-4689: Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component\n- CVE-2026-4690: Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component\n- CVE-2026-4691: Use-after-free in the CSS Parsing and Computation component\n- CVE-2026-4692: Sandbox escape in the Responsive Design Mode component\n- CVE-2026-4693: Incorrect boundary conditions in the Audio/Video: Playback component\n- CVE-2026-4694: Incorrect boundary conditions, integer overflow in the Graphics component\n- CVE-2026-4695: Incorrect boundary conditions in the Audio/Video: Web Codecs component\n- CVE-2026-4696: Use-after-free in the Layout: Text and Fonts component\n- CVE-2026-4697: Incorrect boundary conditions in the Audio/Video: Web Codecs component\n- CVE-2026-4698: JIT miscompilation in the JavaScript Engine: JIT component\n- CVE-2026-4699: Incorrect boundary conditions in the Layout: Text and Fonts component\n- CVE-2026-4700: Mitigation bypass in the Networking: HTTP component\n- CVE-2026-4701: Use-after-free in the JavaScript Engine component\n- CVE-2026-4702: JIT miscompilation in the JavaScript Engine component\n- CVE-2026-4704: Denial-of-service in the WebRTC: Signaling component\n- CVE-2026-4705: Undefined behavior in the WebRTC: Signaling component\n- CVE-2026-4706: Incorrect boundary conditions in the Graphics: Canvas2D component\n- CVE-2026-4707: Incorrect boundary conditions in the Graphics: Canvas2D component\n- CVE-2026-4708: Incorrect boundary conditions in the Graphics component\n- CVE-2026-4709: Incorrect boundary conditions in the Audio/Video: GMP component\n- CVE-2026-4710: Incorrect boundary conditions in the Audio/Video component\n- CVE-2026-4711: Use-after-free in the Widget: Cocoa component\n- CVE-2026-4712: Information disclosure in the Widget: Cocoa component\n- CVE-2026-4713: Incorrect boundary conditions in the Graphics component\n- CVE-2026-4714: Incorrect boundary conditions in the Audio/Video component\n- CVE-2026-4715: Uninitialized memory in the Graphics: Canvas2D component\n- CVE-2026-4716: Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component\n- CVE-2026-4717: Privilege escalation in the Netmonitor component\n- CVE-2025-59375: Denial-of-service in the XML component\n- CVE-2026-4718: Undefined behavior in the WebRTC: Signaling component\n- CVE-2026-4719: Incorrect boundary conditions in the Graphics: Text component\n- CVE-2026-4720: Memory safety bugs fixed in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149\n- CVE-2026-4721: Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9,\n  Firefox 149 and Thunderbird 149\n","modified":"2026-04-02T13:30:49.113203Z","published":"2026-04-01T08:49:11Z","related":["CVE-2025-59375","CVE-2026-3889","CVE-2026-4371","CVE-2026-4684","CVE-2026-4685","CVE-2026-4686","CVE-2026-4687","CVE-2026-4688","CVE-2026-4689","CVE-2026-4690","CVE-2026-4691","CVE-2026-4692","CVE-2026-4693","CVE-2026-4694","CVE-2026-4695","CVE-2026-4696","CVE-2026-4697","CVE-2026-4698","CVE-2026-4699","CVE-2026-4700","CVE-2026-4701","CVE-2026-4702","CVE-2026-4704","CVE-2026-4705","CVE-2026-4706","CVE-2026-4707","CVE-2026-4708","CVE-2026-4709","CVE-2026-4710","CVE-2026-4711","CVE-2026-4712","CVE-2026-4713","CVE-2026-4714","CVE-2026-4715","CVE-2026-4716","CVE-2026-4717","CVE-2026-4718","CVE-2026-4719","CVE-2026-4720","CVE-2026-4721"],"upstream":["CVE-2025-59375","CVE-2026-3889","CVE-2026-4371","CVE-2026-4684","CVE-2026-4685","CVE-2026-4686","CVE-2026-4687","CVE-2026-4688","CVE-2026-4689","CVE-2026-4690","CVE-2026-4691","CVE-2026-4692","CVE-2026-4693","CVE-2026-4694","CVE-2026-4695","CVE-2026-4696","CVE-2026-4697","CVE-2026-4698","CVE-2026-4699","CVE-2026-4700","CVE-2026-4701","CVE-2026-4702","CVE-2026-4704","CVE-2026-4705","CVE-2026-4706","CVE-2026-4707","CVE-2026-4708","CVE-2026-4709","CVE-2026-4710","CVE-2026-4711","CVE-2026-4712","CVE-2026-4713","CVE-2026-4714","CVE-2026-4715","CVE-2026-4716","CVE-2026-4717","CVE-2026-4718","CVE-2026-4719","CVE-2026-4720","CVE-2026-4721"],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2026/suse-su-20261163-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1260083"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-59375"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-3889"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4371"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4684"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4685"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4686"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4687"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4688"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4689"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4690"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4691"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4692"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4693"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4694"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4695"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4696"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4697"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4698"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4699"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4700"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4701"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4702"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4704"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4705"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4706"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4707"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4708"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4709"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4710"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4711"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4712"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4713"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4714"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4715"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4716"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4717"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4718"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4719"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4720"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-4721"}],"affected":[{"package":{"name":"MozillaThunderbird","ecosystem":"openSUSE:Leap 15.6","purl":"pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"140.9.0-150200.8.263.1"}]}],"ecosystem_specific":{"binaries":[{"MozillaThunderbird":"140.9.0-150200.8.263.1","MozillaThunderbird-translations-common":"140.9.0-150200.8.263.1","MozillaThunderbird-translations-other":"140.9.0-150200.8.263.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:1163-1.json"}}],"schema_version":"1.7.5"}