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RockyLinux 10 : emacs (RLSA-2026:84591)

medium Nessus Plugin ID 367794

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-2026:84591 advisory.

 * emacs: GNU Emacs: Heap over-read leading to information disclosure via crafted image (CVE-2026-77219)

 * emacs: emacs: Command injection via crafted filenames in TRAMP (CVE-2026-79992)

 * emacs: Emacs: arbitrary code execution in Flymake mode (CVE-2026-96442)

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=2521196

https://bugzilla.redhat.com/show_bug.cgi?id=2523665

https://bugzilla.redhat.com/show_bug.cgi?id=2537347

https://errata.rockylinux.org/RLSA-2026:84591

Plugin Details

Severity: Medium

ID: 367794

File Name: rocky_linux_RLSA-2026-84591.nasl

Version: 1.1

Type: Local

Published: 10/20/2026

Updated: 10/20/2026

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

Risk Information

VPR

Risk Factor: High

Score: 7.6

Percentile: 98.22

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-96442

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 4.5

Threat Vector: CVSS:4.0/E:U

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

CVSS Score Source: CVE-2026-77219

Vulnerability Information

CPE: cpe:/o:rocky:linux:10, p-cpe:/a:rocky:linux:emacs-common-debuginfo, p-cpe:/a:rocky:linux:emacs-common, p-cpe:/a:rocky:linux:emacs-debuginfo, p-cpe:/a:rocky:linux:emacs-debugsource, p-cpe:/a:rocky:linux:emacs-filesystem, p-cpe:/a:rocky:linux:emacs-lucid-debuginfo, p-cpe:/a:rocky:linux:emacs-lucid, p-cpe:/a:rocky:linux:emacs-nw-debuginfo, p-cpe:/a:rocky:linux:emacs-nw, p-cpe:/a:rocky:linux:emacs

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: 10/20/2026

Vulnerability Publication Date: 8/21/2026

Reference Information

CVE: CVE-2026-77219, CVE-2026-79992, CVE-2026-96442