Issued:
2026-02-09
Updated:
2026-02-09

RHSA-2026:2229 - Important: brotli security update

Synopsis

Important: brotli security update

Type/Severity

Security Advisory Important

Topic

An update for brotli is now available for Red Hat Enterprise Linux 9.6 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Brotli is a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm, Huffman coding and 2nd order context modeling, with a compression ratio comparable to the best currently available general-purpose compression methods. It is similar in speed with deflate but offers more dense compression.

Security Fix(es):

  • Scrapy: python-scrapy: brotli: Python brotli decompression bomb DoS (CVE-2025-6176)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions9.6x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support9.6x86_64
Red Hat Enterprise Linux for Power, little endian - Extended Update Support9.6ppc64le
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support9.6s390x
Red Hat Enterprise Linux for IBM z Systems - 4 years of updates9.6s390x
Red Hat Enterprise Linux for ARM 64 - Extended Update Support9.6aarch64
Red Hat Enterprise Linux for ARM 64 - 4 years of updates9.6aarch64
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions9.6ppc64le
Red Hat Enterprise Linux Server - AUS9.6x86_64

Updated Packages

  • brotli-debuginfo-1.0.9-7.el9_6.1.i686.rpm
  • brotli-1.0.9-7.el9_6.1.src.rpm
  • brotli-devel-1.0.9-7.el9_6.1.ppc64le.rpm
  • libbrotli-1.0.9-7.el9_6.1.x86_64.rpm
  • brotli-debuginfo-1.0.9-7.el9_6.1.x86_64.rpm
  • python3-brotli-debuginfo-1.0.9-7.el9_6.1.ppc64le.rpm
  • python3-brotli-debuginfo-1.0.9-7.el9_6.1.x86_64.rpm
  • python3-brotli-1.0.9-7.el9_6.1.s390x.rpm
  • brotli-debuginfo-1.0.9-7.el9_6.1.aarch64.rpm
  • python3-brotli-1.0.9-7.el9_6.1.aarch64.rpm
  • brotli-1.0.9-7.el9_6.1.aarch64.rpm
  • brotli-debugsource-1.0.9-7.el9_6.1.i686.rpm
  • brotli-devel-1.0.9-7.el9_6.1.x86_64.rpm
  • brotli-devel-1.0.9-7.el9_6.1.i686.rpm
  • brotli-1.0.9-7.el9_6.1.s390x.rpm
  • python3-brotli-1.0.9-7.el9_6.1.ppc64le.rpm
  • python3-brotli-1.0.9-7.el9_6.1.x86_64.rpm
  • brotli-debugsource-1.0.9-7.el9_6.1.aarch64.rpm
  • python3-brotli-debuginfo-1.0.9-7.el9_6.1.s390x.rpm
  • libbrotli-debuginfo-1.0.9-7.el9_6.1.aarch64.rpm
  • libbrotli-1.0.9-7.el9_6.1.ppc64le.rpm
  • python3-brotli-debuginfo-1.0.9-7.el9_6.1.aarch64.rpm
  • brotli-debuginfo-1.0.9-7.el9_6.1.ppc64le.rpm
  • brotli-1.0.9-7.el9_6.1.x86_64.rpm
  • brotli-debugsource-1.0.9-7.el9_6.1.s390x.rpm
  • brotli-devel-1.0.9-7.el9_6.1.s390x.rpm
  • libbrotli-1.0.9-7.el9_6.1.i686.rpm
  • brotli-debugsource-1.0.9-7.el9_6.1.x86_64.rpm
  • libbrotli-debuginfo-1.0.9-7.el9_6.1.s390x.rpm
  • libbrotli-debuginfo-1.0.9-7.el9_6.1.i686.rpm
  • brotli-debuginfo-1.0.9-7.el9_6.1.s390x.rpm
  • brotli-debugsource-1.0.9-7.el9_6.1.ppc64le.rpm
  • libbrotli-debuginfo-1.0.9-7.el9_6.1.ppc64le.rpm
  • libbrotli-debuginfo-1.0.9-7.el9_6.1.x86_64.rpm
  • brotli-1.0.9-7.el9_6.1.ppc64le.rpm
  • libbrotli-1.0.9-7.el9_6.1.s390x.rpm
  • libbrotli-1.0.9-7.el9_6.1.aarch64.rpm
  • brotli-devel-1.0.9-7.el9_6.1.aarch64.rpm
  • python3-brotli-debuginfo-1.0.9-7.el9_6.1.i686.rpm
  • brotli-1.0.9-7.el9_6.1.i686.rpm

Fixes

CVEs

References

Additional information