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Debian dla-4655 : libhtml-parser-perl - security update

high Nessus Plugin ID 323487

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 11 host has a package installed that is affected by a vulnerability as referenced in the dla-4655 advisory.

 ------------------------------------------------------------------------- Debian LTS Advisory DLA-4655-1 [email protected] https://www.debian.org/lts/security/ Guilhem Moulin June 28, 2026 https://wiki.debian.org/LTS
 -------------------------------------------------------------------------

 Package : libhtml-parser-perl Version : 3.75-1+deb11u1 CVE ID : CVE-2026-8829

 Paul Johnson discovered that libhtml-parser-perl, a collection of modules that parse HTML text documents, read freed heap memory in
 _decode_entities().

 For Debian 11 bullseye, this problem has been fixed in version 3.75-1+deb11u1.

 We recommend that you upgrade your libhtml-parser-perl packages.

 For the detailed security status of libhtml-parser-perl please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/libhtml-parser-perl

 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
 signature.asc Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the libhtml-parser-perl packages.

See Also

https://packages.debian.org/source/bullseye/libhtml-parser-perl

https://security-tracker.debian.org/tracker/CVE-2026-8829

http://www.nessus.org/u?ba3b44a9

Plugin Details

Severity: High

ID: 323487

File Name: debian_DLA-4655.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/28/2026

Updated: 6/28/2026

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-8829

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:libhtml-parser-perl

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 6/28/2026

Vulnerability Publication Date: 6/4/2026

Reference Information

CVE: CVE-2026-8829