Debian dsa-6582 : brotli - security update

critical Nessus Plugin ID 371602

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Synopsis

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

Description

The remote Debian 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6582 advisory.

- ------------------------------------------------------------------------- Debian Security Advisory DSA-6582-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso October 23, 2026 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : brotli CVE ID : CVE-2026-111497 Debian Bug : 1151690

A vulnerability was discovered in Brotli, a generic-purpose lossless compression suite, which could result in denial of service, or potentially the execution of arbitrary code.

For the stable distribution (trixie), this problem has been fixed in version 1.1.0-2+deb13u1.

We recommend that you upgrade your brotli packages.

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

Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

Mailing list: [email protected]

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 brotli packages.

Plugin Details

Severity: Critical

ID: 371602

File Name: debian_DSA-6582.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 10/23/2026

Updated: 10/23/2026

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: High

Score: 7.9

Percentile: 99.33

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2026-111497

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 8.2

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:13.0, p-cpe:/a:debian:debian_linux:brotli, p-cpe:/a:debian:debian_linux:libbrotli-dev, p-cpe:/a:debian:debian_linux:libbrotli1, p-cpe:/a:debian:debian_linux:python3-brotli

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/23/2026

Vulnerability Publication Date: 10/21/2026

Reference Information

CVE: CVE-2026-111497

IAVA: 2026-A-1200

Detections

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