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Linux Distros Unpatched Vulnerability : CVE-2026-41080

low Nessus Plugin ID 306845

Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - libexpat before 2.7.6 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document. (CVE-2026-41080)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-41080

https://security-tracker.debian.org/tracker/CVE-2026-41080

Plugin Details

Severity: Low

ID: 306845

File Name: unpatched_CVE_2026_41080.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Misc.

Published: 4/16/2026

Updated: 4/16/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.3

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

CVSS Score Source: CVE-2026-41080

CVSS v3

Risk Factor: Low

Base Score: 2.9

Temporal Score: 2.7

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:centos:centos:expat-static, p-cpe:/a:redhat:enterprise_linux:expat-devel, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:centos:centos:expat-devel, p-cpe:/a:centos:centos:mingw64-expat, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:redhat:enterprise_linux:mingw32-expat, p-cpe:/a:redhat:enterprise_linux:expat, cpe:/o:redhat:enterprise_linux:9, cpe:/o:centos:centos:8, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:centos:centos:expat, p-cpe:/a:debian:debian_linux:expat, p-cpe:/a:redhat:enterprise_linux:mingw-expat, p-cpe:/a:redhat:enterprise_linux:mingw64-expat, p-cpe:/a:centos:centos:compat-expat1, p-cpe:/a:centos:centos:mingw-expat, p-cpe:/a:centos:centos:mingw32-expat, cpe:/o:centos:centos:7, p-cpe:/a:redhat:enterprise_linux:compat-expat1, cpe:/o:redhat:enterprise_linux:7, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:redhat:enterprise_linux:expat-static

Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 4/16/2026

Reference Information

CVE: CVE-2026-41080