CVE-2026-111497
CriticalCVSS 9.2Summary
A buffer overflow 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.
Risk Assessment
The organization may face crashes of services processing Brotli data, memory disclosure, or process takeover by an attacker. The risk applies to any system that decompresses untrusted Brotli data.
Recommendation
Update all Brotli libraries and binaries between versions 1.0.3 and 1.2.0 to the latest available version: 1.0.10, 1.1.1, or 1.2.1.
Related vulnerabilities
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- CVE-2026-79871Critical
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- CVE-2026-79868Critical
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS