{"schema_version": "1.7.0", "id": "RLSA-2026:93461", "modified": "2026-11-03T12:15:11.952078Z", "published": "2026-11-03T12:10:03.560067Z", "upstream": ["CVE-2026-13595", "CVE-2026-27456", "CVE-2026-53612", "CVE-2026-53613", "CVE-2026-53614", "CVE-2026-53615", "CVE-2026-76642", "CVE-2026-78408", "CVE-2026-78410"], "summary": "Important: util-linux security update", "details": "The util-linux packages contain a large variety of low-level system utilities that are necessary for a Linux system to function. Among others, these include the fdisk configuration tool and the login program.\n\nSecurity Fix(es):\n\n* util-linux: TOCTOU in the mount program when setting up loop devices (CVE-2026-27456)\n\n* util-linux: util-linux: heap use-after-free in libblkid nested partition probing (CVE-2026-13595)\n\n* util-linux: TOCTOU in the mount program via ancestor directory swap on target path (CVE-2026-53613)\n\n* util-linux: util-linux: TOCTOU in the mount program when applying post-mount ownership/mode changes (CVE-2026-53612)\n\n* util-linux: util-linux: SUID mount(8) allows nosuid/noexec bypass via LIBMOUNT_FORCE_MOUNT2 (CVE-2026-53614)\n\n* util-linux: util-linux: failed external mount helper still runs privileged X-mount post-hooks (CVE-2026-76642)\n\n* util-linux: util-linux: nsenter --join-cgroup leaks root cgroup migration authority (CVE-2026-78408)\n\n* util-linux: util-linux: restricted bind mounts do not pin the source, allowing X-mount.owner/group/mode redirection (CVE-2026-78410)\n\n* util-linux: util-linux: Partition metadata compromise via integer overflow in DOS partition parser (CVE-2026-53615)\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:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:10", "name": "util-linux", "purl": "pkg:rpm/rocky-linux/util-linux?distro=rocky-linux-10&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.40.2-18.el10_2.20"}], "database_specific": {"yum_repository": "BaseOS"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:93461"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2454956"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2494101"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519646"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519647"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519648"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2521999"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2522497"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2522684"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2552551"}, {"type": "ADVISORY", "url": "https://access.redhat.com/errata/RHSA-2026:93461"}], "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-2026:93461"}}