Debian dla-4639 : libhttp-daemon-perl - security update

critical Nessus Plugin ID 321928

Synopsis

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

Description

The remote Debian 11 / 12 host has a package installed that is affected by a vulnerability as referenced in the dla-4639 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-4639-1 [email protected] https://www.debian.org/lts/security/ Santiago Ruano Rincn June 21, 2026 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : libhttp-daemon-perl Version : 6.12-1+deb11u2 6.16-1+deb13u1~deb12u1 CVE ID : CVE-2026-8450 Debian Bug : 1138050

A flaw was discovered in libhttp-daemon-perl, a simple http server class for Perl, which may result in the execution of arbitrary shell commands or file overwrite when processing specially crafted input.

For Debian 11 bullseye, this problem has been fixed in version 6.12-1+deb11u2.

For Debian 12 bookworm, this problem has been fixed in version 6.16-1+deb13u1~deb12u1.

We recommend that you upgrade your libhttp-daemon-perl packages.

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

Plugin Details

Severity: Critical

ID: 321928

File Name: debian_DLA-4639.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 6/22/2026

Updated: 6/22/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-8450

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:libhttp-daemon-perl, cpe:/o:debian:debian_linux:12.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/21/2026

Vulnerability Publication Date: 5/27/2026

Reference Information

CVE: CVE-2026-8450

Detections

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