RLSA-2026:93461

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Source
https://errata.rockylinux.org/RLSA-2026:93461
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:93461.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:93461
Upstream
CVE (9)
Published
2026-11-03T12:10:03Z
Modified
2026-11-03T12:30:03Z
Severity
  • 8.0 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H CVSS Calculator
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.

Security Fix(es):

  • util-linux: TOCTOU in the mount program when setting up loop devices (CVE-2026-27456)

  • util-linux: util-linux: heap use-after-free in libblkid nested partition probing (CVE-2026-13595)

  • util-linux: TOCTOU in the mount program via ancestor directory swap on target path (CVE-2026-53613)

  • util-linux: util-linux: TOCTOU in the mount program when applying post-mount ownership/mode changes (CVE-2026-53612)

  • util-linux: util-linux: SUID mount(8) allows nosuid/noexec bypass via LIBMOUNT_FORCE_MOUNT2 (CVE-2026-53614)

  • util-linux: util-linux: failed external mount helper still runs privileged X-mount post-hooks (CVE-2026-76642)

  • util-linux: util-linux: nsenter --join-cgroup leaks root cgroup migration authority (CVE-2026-78408)

  • util-linux: util-linux: restricted bind mounts do not pin the source, allowing X-mount.owner/group/mode redirection (CVE-2026-78410)

  • util-linux: util-linux: Partition metadata compromise via integer overflow in DOS partition parser (CVE-2026-53615)

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.

Database specific 
{
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:93461"
}
References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:10 / util-linux

Package

Name
util-linux
Purl
pkg:rpm/rocky-linux/util-linux?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:2.40.2-18.el10_2.20
Database specific
Show details 
{
    "yum_repository": "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:93461.json"