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Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process. A buffer overflow vulnerability in the Brotli decoder (c/dec/decode.c) in Google Brotli versions 1.0.3 through 1.2.0 on all platforms allows a remote unauthenticated attacker to corrupt adjacent decoder state memory, disclose sensitive memory contents, cause a denial of service, or potentially execute arbitrary code using a crafted Brotli-compressed stream. Users need to update any Brotli libraries or binaries between 1.0.3 through 1.2.0 to the latest available version: 1.0.10 or 1.1.1 or 1.2.1.
FEDORA-2026-4aade61415 (brotli-1.2.1-1.fc43 and perl-Alien-Brotli-0.2.2-12.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-4aade61415
FEDORA-2026-4aade61415 has been pushed to the Fedora 43 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-4aade61415` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-4aade61415 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-4aade61415 (brotli-1.2.1-1.fc43 and perl-Alien-Brotli-0.2.2-12.fc43) has been pushed to the Fedora 43 stable repository. If problem still persists, please make note of it in this bug report.