Bug 2559478

Summary: CVE-2026-111497 brotli: Out-of-Bounds Write in Google Brotli Decoder [fedora-rawhide]
Product: [Fedora] Fedora Reporter: Srikanth Balasubramanian <sbalasub>
Component: brotliAssignee: Jonathan Wright <jonathan>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: carlwgeorge, jonathan, pnemade, pouar, tagoh
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["e952c9d9-471d-4c9c-9b03-af60a2ac341b"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of:
: 2560274 (view as bug list) Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 2558973, 2560274    

Description Srikanth Balasubramanian 2026-10-23 06:54:03 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.