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Known vulnerabilities in Red Hat Enterprise Linux AppStream (v. 10)

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CVE Summary Score Published
CVE-2026-6748 Uninitialized memory in the Audio/Video: Web Codecs component 9.8 Critical Apr 21, 2026
CVE-2026-6100 Use-after-free (UAF) was possible in the `lzma.LZMADecompressor`, `bz2.BZ2Decompressor`, and `gzip.GzipFile` when a… 9.1 Critical Apr 13, 2026
CVE-2026-34078 Flatpak is a Linux application sandboxing and distribution framework 9.3 Critical Apr 7, 2026
CVE-2026-4631 Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection 9.8 Critical Apr 7, 2026
CVE-2026-33816 Memory-safety vulnerability in github.com/jackc/pgx/v5 9.8 Critical Apr 7, 2026
CVE-2026-5731 Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and… 9.8 Critical Apr 7, 2026
CVE-2026-31402 In the Linux kernel, the following vulnerability has been resolved: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache… 9.8 Critical Apr 3, 2026
CVE-2026-33526 Squid is a caching proxy for the Web 9.2 Critical Mar 26, 2026
CVE-2026-4721 Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and… 9.8 Critical Mar 24, 2026
CVE-2026-4720 Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148 9.8 Critical Mar 24, 2026
CVE-2026-4700 Mitigation bypass in the Networking: HTTP component 9.8 Critical Mar 24, 2026
CVE-2026-4696 Use-after-free in the Layout: Text and Fonts component 9.8 Critical Mar 24, 2026
CVE-2026-4691 Use-after-free in the CSS Parsing and Computation component 9.8 Critical Mar 24, 2026
CVE-2026-4692 Sandbox escape in the Responsive Design Mode component 9.6 Critical Mar 24, 2026
CVE-2026-4689 Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component 10.0 Critical Mar 24, 2026
CVE-2026-4690 Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component 9.6 Critical Mar 24, 2026
CVE-2026-4687 Sandbox escape due to incorrect boundary conditions in the Telemetry component 9.6 Critical Mar 24, 2026
CVE-2026-4688 Sandbox escape due to use-after-free in the Disability Access APIs component 9.6 Critical Mar 24, 2026
CVE-2026-33186 gRPC-Go is the Go language implementation of gRPC 9.1 Critical Mar 20, 2026
CVE-2006-10003 XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack 9.8 Critical Mar 19, 2026
CVE-2026-31806 FreeRDP is a free implementation of the Remote Desktop Protocol 9.3 Critical Mar 13, 2026
CVE-2026-2793 Memory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and… 9.8 Critical Feb 24, 2026
CVE-2026-2792 Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147 9.8 Critical Feb 24, 2026
CVE-2026-2778 Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component 10.0 Critical Feb 24, 2026
CVE-2026-2776 Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software 10.0 Critical Feb 24, 2026

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