{"schema_version":"1.7.2","id":"OESA-2026-2756","modified":"2026-08-06T11:11:40Z","published":"2026-06-24T11:11:40Z","upstream":["CVE-2026-12289","CVE-2026-12290","CVE-2026-12291","CVE-2026-12292","CVE-2026-12294","CVE-2026-12295","CVE-2026-12296","CVE-2026-12297","CVE-2026-12298","CVE-2026-12299","CVE-2026-12302","CVE-2026-12304","CVE-2026-12305","CVE-2026-12306","CVE-2026-12307","CVE-2026-12308","CVE-2026-12309","CVE-2026-12310","CVE-2026-12311","CVE-2026-12312","CVE-2026-12313","CVE-2026-12314","CVE-2026-12315","CVE-2026-12324","CVE-2026-12325","CVE-2026-12327","CVE-2026-12328","CVE-2026-12329","CVE-2026-12330","CVE-2026-8388","CVE-2026-8391","CVE-2026-8401","CVE-2026-8946","CVE-2026-8947","CVE-2026-8949","CVE-2026-8950","CVE-2026-8953","CVE-2026-8954","CVE-2026-8955","CVE-2026-8956","CVE-2026-8957","CVE-2026-8958","CVE-2026-8959","CVE-2026-8961","CVE-2026-8962","CVE-2026-8968","CVE-2026-8970","CVE-2026-8974","CVE-2026-8975"],"summary":"thunderbird security update","details":"Mozilla Thunderbird is a standalone mail and newsgroup client.\r\n\r\nSecurity Fix(es):\n\nPrivilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12289)\n\nMemory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12290)\n\nUse-after-free in the Networking: HTTP component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12291)\n\nIncorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12292)\n\nSandbox escape in the DOM: Workers component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12294)\n\nSandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12295)\n\nSandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12296)\n\nSandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12297)\n\nMemory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12298)\n\nJIT miscompilation in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12299)\n\nMitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12302)\n\nSame-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12304)\n\nMemory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12305)\n\nMemory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12306)\n\nMemory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12307)\n\nMemory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12308)\n\nMemory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12309)\n\nMemory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12310)\n\nInformation disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12311)\n\nMemory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12312)\n\nInformation disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12313)\n\nMemory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12314)\n\nMitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12315)\n\nIncorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12324)\n\nDenial-of-service in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12325)\n\nMemory safety bugs present in Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12327)\n\nMemory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.(CVE-2026-12328)\n\nMemory safety bug fixed in Thunderbird ESR 140.12. This vulnerability was fixed in Firefox ESR 140.12 and Thunderbird 140.12.(CVE-2026-12329)\n\nIncorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 140.12, Firefox ESR 115.37, and Thunderbird 140.12.(CVE-2026-12330)\n\nIncorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.(CVE-2026-8388)\n\nOther issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.(CVE-2026-8391)\n\nSandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.(CVE-2026-8401)\n\nIncorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8946)\n\nUse-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8947)\n\nInteger overflow in the Widget: Win32 component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8949)\n\nSame-origin policy bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8950)\n\nSandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8953)\n\nIncorrect boundary conditions, integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8954)\n\nPrivilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8955)\n\nInteger overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8956)\n\nPrivilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8957)\n\nInformation disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8958)\n\nSandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8959)\n\nSpoofing issue in the Form Autofill component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8961)\n\nMitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8962)\n\nDenial-of-service due to invalid pointer in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8968)\n\nPrivilege escalation in the Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8970)\n\nMemory safety bugs present in Firefox ESR 140.10 and Firefox 150. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8974)\n\nMemory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 150. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.(CVE-2026-8975)","affected":[{"package":{"ecosystem":"openEuler:24.03-LTS-SP3","name":"thunderbird","purl":"pkg:rpm/openEuler/thunderbird&distro=openEuler-24.03-LTS-SP3"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"140.12.0-1.oe2403sp3"}]}],"ecosystem_specific":{"aarch64":["thunderbird-140.12.0-1.oe2403sp3.aarch64.rpm","thunderbird-debuginfo-140.12.0-1.oe2403sp3.aarch64.rpm","thunderbird-debugsource-140.12.0-1.oe2403sp3.aarch64.rpm","thunderbird-librnp-rnp-140.12.0-1.oe2403sp3.aarch64.rpm","thunderbird-wayland-140.12.0-1.oe2403sp3.aarch64.rpm"],"src":["thunderbird-140.12.0-1.oe2403sp3.src.rpm"],"x86_64":["thunderbird-140.12.0-1.oe2403sp3.x86_64.rpm","thunderbird-debuginfo-140.12.0-1.oe2403sp3.x86_64.rpm","thunderbird-debugsource-140.12.0-1.oe2403sp3.x86_64.rpm","thunderbird-librnp-rnp-140.12.0-1.oe2403sp3.x86_64.rpm","thunderbird-wayland-140.12.0-1.oe2403sp3.x86_64.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2756"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12289"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12290"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12291"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12292"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12294"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12295"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12296"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12297"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12298"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12299"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12302"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12304"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12305"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12306"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12307"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12308"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12309"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12310"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12311"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12312"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12313"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12314"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12315"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12324"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12325"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12327"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12328"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12329"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12330"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8388"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8391"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8401"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8946"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8947"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8949"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8950"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8953"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8954"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8955"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8956"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8957"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8958"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8959"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8961"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8962"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8968"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8970"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8974"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8975"}],"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}],"database_specific":{"severity":"Critical"}}