ChangeIntel IT change radar

Public mode

No access to your tenant or devices. Every item links to its source. What this means

CVE-2026-111497

Out-of-Bounds Write in Google Brotli Decoder

CVSS 4.0 9.2 CRITICALCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 30 Oct 2026 19:45:26 UTC. Read the latest advisory.

cve-program · CVE-2026-111497

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-111497

Published

github.com/google/brotli

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Google",
                    "product": "Brotli",
                    "packageName": "github.com/google/brotli",
                    "repo": "https://github.com/google/brotli",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "1.0.3",
                            "lessThan": "1.0.10",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "1.1.0",
                            "lessThan": "1.1.1",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "1.2.0",
                            "lessThan": "1.2.1",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON