Detections
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RHEL 10 : libarchive (RHSA-2026:69553)

low Nessus Plugin ID 348685

Synopsis

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

Description

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:69553 advisory.

 The libarchive programming library can create and read several different streaming archive formats, including GNU tar, cpio, and ISO 9660 CD-ROM images. Libarchive is used notably in the bsdtar utility, scripting language bindings such as python-libarchive, and several popular desktop file managers.

 Security Fix(es):

 * libarchive: heap overflow OOB read while parsing a tar archive contains a PAX extended header (CVE-2026-15028)

 * libarchive: libarchive: Signed Integer Overflow in archive_write_zip_header (CVE-2026-16517)

 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 libarchive package based on the guidance in RHSA-2026:69553.

See Also

https://access.redhat.com/errata/RHSA-2026:69553

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

https://bugzilla.redhat.com/show_bug.cgi?id=2497970

https://bugzilla.redhat.com/show_bug.cgi?id=2505492

http://www.nessus.org/u?a339b3bb

Plugin Details

Severity: Low

ID: 348685

File Name: redhat-RHSA-2026-69553.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 9/21/2026

Updated: 9/21/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.92

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Low

Base Score: 3.2

Temporal Score: 2.4

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

CVSS Score Source: CVE-2026-15028

CVSS v3

Risk Factor: Low

Base Score: 3.9

Temporal Score: 3.4

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:10.2, p-cpe:/a:redhat:enterprise_linux:bsdtar, p-cpe:/a:redhat:enterprise_linux:libarchive-devel, p-cpe:/a:redhat:enterprise_linux:libarchive

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: 9/21/2026

Vulnerability Publication Date: 7/10/2026

Reference Information

CVE: CVE-2026-15028, CVE-2026-16517

CWE: 190, 805

RHSA: 2026:69553