Detections
Analytics

Alpine: multiple clamav packages, multiple freshclam packages: security update to 1.4.4-r0

medium Tenable Cloud Security Plugin ID 438529

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - A vulnerability in the HTML Cascading Style Sheets (CSS) module of ClamAV could allow an unauthenticated,
 remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is
 due to improper error handling when splitting UTF-8 strings. An attacker could exploit this vulnerability
 by submitting a crafted HTML file to be scanned by ClamAV on an affected device. A successful exploit
 could allow the attacker to terminate the scanning process. (CVE-2026-20031)

Solution

Update the clamav library and its related packages to version 1.4.4-r0 or later.

See Also

https://security.alpinelinux.org/vuln/CVE-2026-20031

Plugin Details

Severity: Medium

ID: 438529

Version: Revision 1.6

Type: Local

Published: 3/10/2026

Updated: 6/1/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-20031

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 3/4/2026

Reference Information

CVE: CVE-2026-20031