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RHEL 10 : emacs (RHSA-2026:98574)

high Nessus Plugin ID 379011

Synopsis

The remote Red Hat host is missing one or more security updates for emacs.

Description

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:98574 advisory.

 GNU Emacs is a powerful, customizable, self-documenting text editor. It provides special code editing features, a scripting language (elisp), and the capability to read e-mail and news.

 Security Fix(es):

 * 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)

 * emacs: GNU Emacs: Arbitrary code execution upon opening a file (CVE-2026-96269)

 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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 RHEL emacs package based on the guidance in RHSA-2026:98574.

See Also

https://access.redhat.com/errata/RHSA-2026:98574

https://access.redhat.com/security/updates/classification/#important

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://bugzilla.redhat.com/show_bug.cgi?id=2538925

http://www.nessus.org/u?960541de

Plugin Details

Severity: High

ID: 379011

File Name: redhat-RHSA-2026-98574.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 11/11/2026

Updated: 11/11/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.9

Percentile: 99.32

Vendor

Vendor Severity: Important

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: High

Base Score: 7.5

Threat Score: 4.8

Threat Vector: CVSS:4.0/E:U

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

CVSS Score Source: CVE-2026-96269

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:10.3, p-cpe:/a:redhat:enterprise_linux:emacs-common, p-cpe:/a:redhat:enterprise_linux:emacs-filesystem, p-cpe:/a:redhat:enterprise_linux:emacs-lucid, p-cpe:/a:redhat:enterprise_linux:emacs-nw, p-cpe:/a:redhat:enterprise_linux:emacs

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/11/2026

Vulnerability Publication Date: 8/21/2026

Reference Information

CVE: CVE-2026-77219, CVE-2026-79992, CVE-2026-96269, CVE-2026-96442

CWE: 125, 78, 94

RHSA: 2026:98574