Amazon Linux 2 Security Advisory: ALAS2FIREFOX-2026-050
Advisory Released Date: 2026-02-19
Advisory Updated Date: 2026-02-19
FAQs regarding Amazon Linux ALAS/CVE Severity
Spoofing issue in the Downloads Panel component. This vulnerability affects Firefox < 146. (CVE-2025-14327)
Mitigation bypass in the DOM: Security component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, and Firefox ESR < 140.7. (CVE-2026-0877)
Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. (CVE-2026-0878)
Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, and Firefox ESR < 140.7. (CVE-2026-0879)
Sandbox escape due to integer overflow in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, and Firefox ESR < 140.7. (CVE-2026-0880)
Use-after-free in the IPC component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, and Firefox ESR < 140.7. (CVE-2026-0882)
Information disclosure in the Networking component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. (CVE-2026-0883)
Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. (CVE-2026-0884)
Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. (CVE-2026-0885)
Incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, and Firefox ESR < 140.7. (CVE-2026-0886)
Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. (CVE-2026-0887)
Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. (CVE-2026-0890)
Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. 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 affects Firefox < 147 and Firefox ESR < 140.7. (CVE-2026-0891)
Affected Packages:
firefox
Note:
This advisory is applicable to Amazon Linux 2 - Firefox Extra. Visit this page to learn more about Amazon Linux 2 (AL2) Extras and this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update firefox or yum update --advisory ALAS2FIREFOX-2026-050 to update your system.
aarch64:
firefox-140.7.0-1.amzn2.0.2.aarch64
src:
firefox-140.7.0-1.amzn2.0.2.src
x86_64:
firefox-140.7.0-1.amzn2.0.2.x86_64