Detections
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RHEL 8 : mingw-libpng (RHSA-2026:4306)

high Nessus Plugin ID 301836

Synopsis

The remote Red Hat host is missing one or more security updates for mingw-libpng.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:4306 advisory.

 MinGW Windows Libpng library.

 Security Fix(es):

 * libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write API (CVE-2026-22801)

 * libpng: libpng: Denial of service and information disclosure via heap buffer over-read in png_image_finish_read (CVE-2026-22695)

 * libpng: LIBPNG has a heap buffer overflow in png_set_quantize (CVE-2026-25646)

 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 mingw-libpng package based on the guidance in RHSA-2026:4306.

See Also

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

https://bugzilla.redhat.com/show_bug.cgi?id=2438542

https://bugzilla.redhat.com/show_bug.cgi?id=2428824

https://bugzilla.redhat.com/show_bug.cgi?id=2428825

http://www.nessus.org/u?b1fa4c4c

https://access.redhat.com/errata/RHSA-2026:4306

Plugin Details

Severity: High

ID: 301836

File Name: redhat-RHSA-2026-4306.nasl

Version: 1.1

Type: local

Agent: unix

Published: 3/11/2026

Updated: 3/11/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 6

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

CVSS Score Source: CVE-2026-25646

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

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

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

CVSS v4

Risk Factor: High

Base Score: 8.3

Threat Score: 7

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:mingw64-libpng, p-cpe:/a:redhat:enterprise_linux:mingw64-libpng-static, p-cpe:/a:redhat:enterprise_linux:mingw32-libpng, p-cpe:/a:redhat:enterprise_linux:mingw32-libpng-static, cpe:/o:redhat:rhel_eus:8.10, p-cpe:/a:redhat:enterprise_linux:mingw-libpng, cpe:/o:redhat:enterprise_linux:8

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/11/2026

Vulnerability Publication Date: 1/12/2026

Reference Information

CVE: CVE-2026-22695, CVE-2026-22801, CVE-2026-25646

CWE: 125

RHSA: 2026:4306