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Mageia 9 Thunderbird Important Issues Fixes MGASA-2026-0053

mageia
Calendar Grey March 9, 2026
Dist Mageia Esm H88
Critical vulnerabilities fixed in updated Thunderbird packages for Mageia to ensure application security and stability.
MGASA-2026-0053 - Updated thunderbird packages fix security vulnerabilities

Summary

Description: Incorrect boundary conditions in the WebRTC: Audio/Video component. (CVE-2026-2757) Use-after-free in the JavaScript: GC component. (CVE-2026-2758) Incorrect boundary conditions in the Graphics: ImageLib component. (CVE-2026-2759) Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. (CVE-2026-2760) Sandbox escape in the Graphics: WebRender component. (CVE-2026-2761) Integer overflow in the JavaScript: Standard Library component. (CVE-2026-2762) Use-after-free in the JavaScript Engine component. (CVE-2026-2763) JIT miscompilation, use-after-free in the JavaScript Engine: JIT component. (CVE-2026-2764) Use-after-free in the JavaScript Engine component. (CVE-2026-2765) Use-after-free in the JavaScript Engine: JIT component. (CVE-2026-2766) Use-after-free in the JavaScript: WebAssembly component. (CVE-2026-2767) Sandbox escape in the Storage: IndexedDB component. (CVE-2026-2768) Use-after-free in the Storage: IndexedDB component. (CVE-20...

References

- https://bugs.mageia.org/show_bug.cgi?id=35166

- https://www.thunderbird.net/en-US/thunderbird/140.8.0esr/releasenotes/

- https://www.mozilla.org/en-US/security/advisories/mfsa2026-17/

- https://www.cve.org/CVERecord?id=CVE-2026-2757

- https://www.cve.org/CVERecord?id=CVE-2026-2758

- https://www.cve.org/CVERecord?id=CVE-2026-2759

- https://www.cve.org/CVERecord?id=CVE-2026-2760

- https://www.cve.org/CVERecord?id=CVE-2026-2761

- https://www.cve.org/CVERecord?id=CVE-2026-2762

- https://www.cve.org/CVERecord?id=CVE-2026-2763

- https://www.cve.org/CVERecord?id=CVE-2026-2764

- https://www.cve.org/CVERecord?id=CVE-2026-2765

- https://www.cve.org/CVERecord?id=CVE-2026-2766

- https://www.cve.org/CVERecord?id=CVE-2026-2767

- https://www.cve.org/CVERecord?id=CVE-2026-2768

- https://www.cve.org/CVERecord?id=CVE-2026-2769

- https://www.cve.org/CVERecord?id=CVE-2026-2770

- https://www.cve.org/CVERecord?id=CVE-2026-2771

- https://www.cve.org/CVERecord?id=CVE-2026-2772

- https://www.cve.org/CVERecord?id=CVE-2026-2773

- https://www.cve.org/CVERecord?id=CVE-2026-2774

- https://www.cve.org/CVERecord?id=CVE-2026-2775

- https://www.cve.org/CVERecord?id=CVE-2026-2776

- https://www.cve.org/CVERecord?id=CVE-2026-2777

- https://www.cve.org/CVERecord?id=CVE-2026-2778

- https://www.cve.org/CVERecord?id=CVE-2026-2779

- https://www.cve.org/CVERecord?id=CVE-2026-2780

- https://www.cve.org/CVERecord?id=CVE-2026-2782

- https://www.cve.org/CVERecord?id=CVE-2026-2783

- https://www.cve.org/CVERecord?id=CVE-2026-2784

- https://www.cve.org/CVERecord?id=CVE-2026-2785

- https://www.cve.org/CVERecord?id=CVE-2026-2786

- https://www.cve.org/CVERecord?id=CVE-2026-2787

- https://www.cve.org/CVERecord?id=CVE-2026-2788

- https://www.cve.org/CVERecord?id=CVE-2026-2789

- https://www.cve.org/CVERecord?id=CVE-2026-2790

- https://www.cve.org/CVERecord?id=CVE-2026-2791

- https://www.cve.org/CVERecord?id=CVE-2026-2792

- https://www.cve.org/CVERecord?id=CVE-2026-2793

Topics%20covered

Topics Covered

security advisory privilege escalation important information disclosure thunderbird Mageia

Resolution

SRPMS

- 9/core/thunderbird-140.8.0-1.mga9

- 9/core/thunderbird-l10n-140.8.0-1.mga9

Severity
important
Lowest
Low
Medium
High
Critical

Publication date: 09 Mar 2026
URL: https://advisories.mageia.org/MGASA-2026-0053.html
Type: security
CVE: CVE-2026-2757, CVE-2026-2758, CVE-2026-2759, CVE-2026-2760, CVE-2026-2761, CVE-2026-2762, CVE-2026-2763, CVE-2026-2764, CVE-2026-2765, CVE-2026-2766, CVE-2026-2767, CVE-2026-2768, CVE-2026-2769, CVE-2026-2770, CVE-2026-2771, CVE-2026-2772, CVE-2026-2773, CVE-2026-2774, CVE-2026-2775, CVE-2026-2776, CVE-2026-2777, CVE-2026-2778, CVE-2026-2779, CVE-2026-2780, CVE-2026-2782, CVE-2026-2783, CVE-2026-2784, CVE-2026-2785, CVE-2026-2786, CVE-2026-2787, CVE-2026-2788, CVE-2026-2789, CVE-2026-2790, CVE-2026-2791, CVE-2026-2792, CVE-2026-2793

Topics%20covered

Topics Covered

security advisory privilege escalation important information disclosure thunderbird Mageia

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