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[gentoo-announce] [ GLSA 202611-01 ] Brotli: Remote code execution

Posted on 11 November 2026
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 202611-01
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https://security.gentoo.org/
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Severity: High
Title: Brotli: Remote code execution
Date: November 10, 2026
Bugs: #984677
ID: 202611-01

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Synopsis
========
A vulnerability has been discovered in Brotli, allowing remote code
execution.

Background
==========
Brotli is a generic-purpose lossless compression algorithm.

Affected packages
=================
Package Vulnerable Unaffected
--------------- ------------ ------------
app-arch/brotli < 1.2.0-r2 >= 1.2.0-r2

Description
===========
A vulnerability has been discovered in Brotli. Please review the CVE
identifier referenced below for details.

Impact
======
A remote attacker could achieve code execution.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All Brotli users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/brotli-1.2.0-r2"

References
==========
[ 1 ] CVE-2026-111497
https://nvd.nist.gov/vuln/detail/CVE-2026-111497

Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202611-01

Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======
Copyright 2026 Gentoo Authors; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license (CC-BY-SA-4.0).

https://creativecommons.org/licenses/by-sa/4.0
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