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SUSE MozillaFirefox Important Memory Safety and Escape Issues 2026-2109-1

suse
Calendar Grey May 29, 2026
Dist Suse Esm H88
MozillaFirefox security update addresses 24 issues, enhancing protection and privacy for SUSE users. Install now!
An update that solves 24 vulnerabilities can now be installed.

Summary

## This update for MozillaFirefox fixes the following issues Update to Firefox Extended Support Release 140.11.0 ESR MFSA 2026-41, MFSA 2026-48 (bsc#1265212, bsc#1264378): * CVE-2026-8090: Use-after-free in the DOM: Networking component. * CVE-2026-8092: Memory safety bugs fixed in Firefox ESR 115.35.2, Firefox ESR 140.10.2 and Firefox 150.0.2. * CVE-2026-8094: Other issue in the WebRTC component. * CVE-2026-8388: Incorrect boundary conditions in the JavaScript Engine: JIT component. * CVE-2026-8391: Other issue in the JavaScript Engine component. * CVE-2026-8401: Sandbox escape in the Profile Backup component. * CVE-2026-8946: Incorrect boundary conditions in the Audio/Video: Web Codecs component. * CVE-2026-8947: Use-after-free in the DOM: Bindings (WebIDL) component.

Topics%20covered

Topics Covered

security advisory SuSE important firefox memory safety sandbox escape

References

* bsc#1264378

* bsc#1265212

Cross-

* CVE-2026-8090

* CVE-2026-8091

* CVE-2026-8092

* CVE-2026-8094

* 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

CVSS scores:

* CVE-2026-8090 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

* CVE-2026-8090 ( NVD ): 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

* CVE-2026-8091 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

* CVE-2026-8091 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2109-1
Release Date: 2026-05-29T07:21:40Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important firefox memory safety sandbox escape

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