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RockyLinux 10 : coreutils (RLSA-2026:67886)

medium Nessus Plugin ID 346839

Synopsis

The remote RockyLinux host is missing one or more security updates.

Description

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:67886 advisory.

 * coreutils: GNU coreutils uniq: Denial of Service and information disclosure via out-of-bounds read with multibyte input (CVE-2026-56391)

 * coreutils: GNU coreutils unexpand: Denial of Service via crafted tab stop values (CVE-2026-56392)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://bugzilla.redhat.com/show_bug.cgi?id=2506691

https://bugzilla.redhat.com/show_bug.cgi?id=2506694

https://errata.rockylinux.org/RLSA-2026:67886

Plugin Details

Severity: Medium

ID: 346839

File Name: rocky_linux_RLSA-2026-67886.nasl

Version: 1.1

Type: Local

Published: 9/17/2026

Updated: 9/17/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.64

CVSS v2

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 4.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:P/A:C

CVSS Score Source: CVE-2026-56392

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 4.6

Threat Score: 1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-56391

Vulnerability Information

CPE: cpe:/o:rocky:linux:10, p-cpe:/a:rocky:linux:coreutils-common, p-cpe:/a:rocky:linux:coreutils-debuginfo, p-cpe:/a:rocky:linux:coreutils-debugsource, p-cpe:/a:rocky:linux:coreutils-single-debuginfo, p-cpe:/a:rocky:linux:coreutils-single, p-cpe:/a:rocky:linux:coreutils

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RockyLinux/release, Host/RockyLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/17/2026

Vulnerability Publication Date: 7/24/2026

Reference Information

CVE: CVE-2026-56391, CVE-2026-56392