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Brotli Compression Library for Linux Updated to Fix Security Flaw

published 8 months ago

Summary

A security update is available for the Brotli compression library, which is used by various Linux distributions, including Red Hat. This update fixes a security issue that could allow an attacker to cause the application using the library to crash or execute arbitrary code. Linux administrators should update their systems to the latest version of the Brotli library to ensure the security of their applications and data.

What to do

Update redhat brotli to version 0:1.0.9-6.el9_0.1.
Update redhat brotli-debuginfo to version 0:1.0.9-6.el9_0.1.
Update redhat brotli-debugsource to version 0:1.0.9-6.el9_0.1.
Update redhat brotli-devel to version 0:1.0.9-6.el9_0.1.
Update redhat libbrotli to version 0:1.0.9-6.el9_0.1.
Update redhat libbrotli-debuginfo to version 0:1.0.9-6.el9_0.1.
Update redhat python3-brotli to version 0:1.0.9-6.el9_0.1.
Update redhat python3-brotli-debuginfo to version 0:1.0.9-6.el9_0.1.

Affected software

Ecosystem	Vendor	Product	Affected versions
Red Hat:rhel_e4s:9.0::appstream	redhat	brotli	< 0:1.0.9-6.el9_0.1 Fix: upgrade to 0:1.0.9-6.el9_0.1
Red Hat:rhel_e4s:9.0::appstream	redhat	brotli-debuginfo	< 0:1.0.9-6.el9_0.1 Fix: upgrade to 0:1.0.9-6.el9_0.1
Red Hat:rhel_e4s:9.0::appstream	redhat	brotli-debugsource	< 0:1.0.9-6.el9_0.1 Fix: upgrade to 0:1.0.9-6.el9_0.1
Red Hat:rhel_e4s:9.0::appstream	redhat	brotli-devel	< 0:1.0.9-6.el9_0.1 Fix: upgrade to 0:1.0.9-6.el9_0.1
Red Hat:rhel_e4s:9.0::appstream	redhat	libbrotli	< 0:1.0.9-6.el9_0.1 Fix: upgrade to 0:1.0.9-6.el9_0.1
Red Hat:rhel_e4s:9.0::appstream	redhat	libbrotli-debuginfo	< 0:1.0.9-6.el9_0.1 Fix: upgrade to 0:1.0.9-6.el9_0.1
Red Hat:rhel_e4s:9.0::appstream	redhat	python3-brotli	< 0:1.0.9-6.el9_0.1 Fix: upgrade to 0:1.0.9-6.el9_0.1
Red Hat:rhel_e4s:9.0::appstream	redhat	python3-brotli-debuginfo	< 0:1.0.9-6.el9_0.1 Fix: upgrade to 0:1.0.9-6.el9_0.1
Red Hat:rhel_e4s:9.0::baseos	redhat	brotli	< 0:1.0.9-6.el9_0.1 Fix: upgrade to 0:1.0.9-6.el9_0.1
Red Hat:rhel_e4s:9.0::baseos	redhat	brotli-debuginfo	< 0:1.0.9-6.el9_0.1 Fix: upgrade to 0:1.0.9-6.el9_0.1
Red Hat:rhel_e4s:9.0::baseos	redhat	brotli-debugsource	< 0:1.0.9-6.el9_0.1 Fix: upgrade to 0:1.0.9-6.el9_0.1
Red Hat:rhel_e4s:9.0::baseos	redhat	brotli-devel	< 0:1.0.9-6.el9_0.1 Fix: upgrade to 0:1.0.9-6.el9_0.1
Red Hat:rhel_e4s:9.0::baseos	redhat	libbrotli	< 0:1.0.9-6.el9_0.1 Fix: upgrade to 0:1.0.9-6.el9_0.1
Red Hat:rhel_e4s:9.0::baseos	redhat	libbrotli-debuginfo	< 0:1.0.9-6.el9_0.1 Fix: upgrade to 0:1.0.9-6.el9_0.1
Red Hat:rhel_e4s:9.0::baseos	redhat	python3-brotli	< 0:1.0.9-6.el9_0.1 Fix: upgrade to 0:1.0.9-6.el9_0.1
Red Hat:rhel_e4s:9.0::baseos	redhat	python3-brotli-debuginfo	< 0:1.0.9-6.el9_0.1 Fix: upgrade to 0:1.0.9-6.el9_0.1

Original advisory text

Red Hat Security Advisory: brotli security update

References

https://access.redhat.com/errata/RHSA-2026:2226 Vendor Advisory
https://access.redhat.com/security/updates/classification/#important Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2408762 Third Party Advisory
https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_2226.j... Vendor Advisory
https://access.redhat.com/security/cve/CVE-2025-6176 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2025-6176 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2025-6176 Vendor Advisory
https://huntr.com/bounties/2c26a886-5984-47ee-a421-0d5fe1344eb0 Third Party Advisory

Fix within

Internet-facing 14 days

Internal 60 days

Not known to be exploited
Can be exploited automatically (estimated)
Gives an attacker partial control (estimated)

Severity

7.5 High

Timeline

Published9 Feb 2026

Updated6 Mar 2026

First seen6 Mar 2026

Sources

RHSA-2026:2226 · OSV

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