{"schema_version": "1.7.0", "id": "RLSA-2026:55448", "modified": "2026-08-17T18:09:15.419208Z", "published": "2026-08-17T18:06:54.076078Z", "upstream": ["CVE-2026-44950", "CVE-2026-59679"], "summary": "Important: libXfont2 security update", "details": "X.Org X11 libXfont2 runtime library\n\nSecurity Fix(es):\n\n* libxfont2: Font Server Client encoding[] Out-Of-Bounds Read/Write (CVE-2026-59679)\n\n* libxfonts2: libXfont2: Privilege Escalation via Heap Buffer Overflow in Font Server Client (CVE-2026-44950)\n\nFor 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.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:10", "name": "libXfont2", "purl": "pkg:rpm/rocky-linux/libXfont2?distro=rocky-linux-10&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.0.6-5.el10_2.3"}], "database_specific": {"yum_repository": "AppStream"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:55448"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2509620"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2509622"}, {"type": "ADVISORY", "url": "https://access.redhat.com/errata/RHSA-2026:55448"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}], "database_specific": {"license": "CC-BY-4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/", "source_advisory": "RHSA-2026:55448"}}