RLSA-2026:8052
- Source
- https://errata.rockylinux.org/RLSA-2026:8052
- Import Source
- https://storage.googleapis.com/resf-osv-data/RLSA-2026:8052.json
- JSON Data
- https://api.osv.dev/v1/vulns/RLSA-2026:8052
- Upstream
- Published
- 2026-04-16T12:00:34.288576Z
- Modified
- 2026-04-16T12:30:13.292250Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- Important: firefox security update
- Details
-
Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.
Security Fix(es):
libpng: libpng: Arbitrary code execution due to use-after-free vulnerability (CVE-2026-33416)
libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion (CVE-2026-33636)
thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5734)
thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5731)
firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics: Text component (CVE-2026-5732)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
- References
-
- https://errata.rockylinux.org/RLSA-2026:8052
- https://bugzilla.redhat.com/show_bug.cgi?id=2451805
- https://bugzilla.redhat.com/show_bug.cgi?id=2451819
- https://bugzilla.redhat.com/show_bug.cgi?id=2455897
- https://bugzilla.redhat.com/show_bug.cgi?id=2455901
- https://bugzilla.redhat.com/show_bug.cgi?id=2455908
- Credits
-
-
- Rocky Enterprise Software Foundation
-
- Red Hat
-
Affected packages
Rocky Linux:8 / firefox
Package
- Name
- firefox
- Purl
- pkg:rpm/rocky-linux/firefox?distro=rocky-linux-8&epoch=0