Bug 2559473 - CVE-2026-111497 mingw-qt5-qtwebkit: Out-of-Bounds Write in Google Brotli Decoder [fedora-44]
Summary: CVE-2026-111497 mingw-qt5-qtwebkit: Out-of-Bounds Write in Google Brotli Deco...
Keywords:
Status: ON_QA
Alias: None
Product: Fedora
Classification: Fedora
Component: mingw-qt5-qtwebkit
Version: 44
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Sandro Mani
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["e952c9d9-471d-4c9c-9b03-a...
Depends On:
Blocks: CVE-2026-111497
TreeView+ depends on / blocked
 
Reported: 2026-10-23 06:53 UTC by Srikanth Balasubramanian
Modified: 2026-10-27 06:37 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Srikanth Balasubramanian 2026-10-23 06:53:07 UTC
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.

Comment 1 Fedora Update System 2026-10-26 08:11:38 UTC
FEDORA-2026-a336a99528 (mingw-qt5-qtwebkit-5.212.0-0.46.alpha4.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-a336a99528

Comment 2 Fedora Update System 2026-10-27 01:57:10 UTC
FEDORA-2026-a336a99528 has been pushed to the Fedora 44 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-a336a99528`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-a336a99528

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 3 Fedora Update System 2026-10-27 02:15:13 UTC
FEDORA-2026-5b98dd6d78 has been pushed to the Fedora 45 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-5b98dd6d78`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-5b98dd6d78

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.


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