RHEL 10 : libsolv (RHSA-2026:28236)

medium Nessus Plugin ID 322341

Synopsis

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

Description

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:28236 advisory.

The libsolv packages provide a library for resolving package dependencies using a satisfiability algorithm.

Security Fix(es):

* libsolv: Stack-based buffer overflow in libsolv's Debian metadata parser when handling SHA384/SHA512 checksums (CVE-2026-9150)

* libsolv: Heap buffer overflow in libsolv repo_add_solv via negative maxsize from crafted .solv file (CVE-2026-9149)

* libsolv: Heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data (CVE-2026-48864)

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 libsolv package based on the guidance in RHSA-2026:28236.

Plugin Details

Severity: Medium

ID: 322341

File Name: redhat-RHSA-2026-28236.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 6/24/2026

Updated: 6/24/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2026-48864

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

CVSS Score Source: CVE-2026-9149

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:python3-solv, p-cpe:/a:redhat:enterprise_linux:libsolv-tools, p-cpe:/a:redhat:enterprise_linux:libsolv-tools-base, cpe:/o:redhat:enterprise_linux:10.2, p-cpe:/a:redhat:enterprise_linux:libsolv-devel, p-cpe:/a:redhat:enterprise_linux:libsolv

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: 6/23/2026

Vulnerability Publication Date: 5/20/2026

Reference Information

CVE: CVE-2026-48864, CVE-2026-9149, CVE-2026-9150

CWE: 121, 122, 787

RHSA: 2026:28236

Detections

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