RockyLinux 8 : python3.12 (RLSA-2026:10950)

critical Nessus Plugin ID 310642

Synopsis

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

Description

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:10950 advisory.

* expat: libexpat in Expat allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing (CVE-2025-59375)

* python: Quadratic complexity in os.path.expandvars() with user-controlled template (CVE-2025-6075)

* cpython: Out-of-memory when loading Plist (CVE-2025-13837)

* cpython: Header injection via newlines in data URL mediatype in Python (CVE-2025-15282)

* cpython: Header injection in http.cookies.Morsel in Python (CVE-2026-0672)

* cpython: CPython: Logging Bypass in Legacy .pyc File Handling (CVE-2026-2297)

* cpython: Incomplete control character validation in http.cookies (CVE-2026-3644)

* cpython: Stack overflow parsing XML with deeply nested DTD content models (CVE-2026-4224)

* python: Python: HTTP header injection via CR/LF in proxy tunnel headers (CVE-2026-1502)

* python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules (CVE-2026-6100)

* python: cpython: Python: Arbitrary code execution via command injection in webbrowser.open() API (CVE-2026-4786)

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=2448168

https://bugzilla.redhat.com/show_bug.cgi?id=2448181

https://bugzilla.redhat.com/show_bug.cgi?id=2457409

https://bugzilla.redhat.com/show_bug.cgi?id=2457932

https://bugzilla.redhat.com/show_bug.cgi?id=2458049

https://errata.rockylinux.org/RLSA-2026:10950

https://bugzilla.redhat.com/show_bug.cgi?id=2395108

https://bugzilla.redhat.com/show_bug.cgi?id=2408891

https://bugzilla.redhat.com/show_bug.cgi?id=2418084

https://bugzilla.redhat.com/show_bug.cgi?id=2431366

https://bugzilla.redhat.com/show_bug.cgi?id=2431374

https://bugzilla.redhat.com/show_bug.cgi?id=2444691

Plugin Details

Severity: Critical

ID: 310642

File Name: rocky_linux_RLSA-2026-10950.nasl

Version: 1.1

Type: Local

Published: 4/28/2026

Updated: 4/28/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.0

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.8

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

CVSS Score Source: CVE-2025-13837

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

CVSS Score Source: CVE-2025-6075

CVSS v4

Risk Factor: Critical

Base Score: 9.1

Threat Score: 8.1

Threat Vector: CVSS:4.0/E:P

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

CVSS Score Source: CVE-2026-6100

Vulnerability Information

CPE: p-cpe:/a:rocky:linux:python3.12-debug, p-cpe:/a:rocky:linux:python3.12-debuginfo, p-cpe:/a:rocky:linux:python3.12-debugsource, p-cpe:/a:rocky:linux:python3.12-devel, p-cpe:/a:rocky:linux:python3.12-rpm-macros, cpe:/o:rocky:linux:8, p-cpe:/a:rocky:linux:python3.12, p-cpe:/a:rocky:linux:python3.12-idle, p-cpe:/a:rocky:linux:python3.12-libs, p-cpe:/a:rocky:linux:python3.12-test, p-cpe:/a:rocky:linux:python3.12-tkinter

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/28/2026

Vulnerability Publication Date: 6/10/2025

Reference Information

CVE: CVE-2025-13837, CVE-2025-15282, CVE-2025-59375, CVE-2025-6075, CVE-2026-0672, CVE-2026-1502, CVE-2026-2297, CVE-2026-3644, CVE-2026-4224, CVE-2026-4786, CVE-2026-6100

IAVA: 2025-A-0444-S, 2026-A-0142-S, 2026-A-0360