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CVE-2026-111497

Full vulnerability record from the local CVENow database.

Description

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.

Severity
CRITICAL
CVSS score
9.2 (v4.0)
Vulnerability status
Analyzed
Source identifier
Published
2026-10-22 14:17:37.190000
Last modified
2026-11-10 20:25:59.130000
View original CVE JSON
{
  "id": "CVE-2026-111497",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-22T14:17:37.190",
  "lastModified": "2026-11-10T20:25:59.130",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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.\n\n\n\n\n\nUsers 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."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
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          "product": "Brotli",
          "defaultStatus": "unaffected",
          "packageName": "github.com/google/brotli",
          "repo": "https://github.com/google/brotli",
          "versions": [
            {
              "version": "1.0.3",
              "lessThan": "1.0.10",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "1.1.0",
              "lessThan": "1.1.1",
              "versionType": "semver",
              "status": "affected"
            },
            {
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              "lessThan": "1.2.1",
              "versionType": "semver",
              "status": "affected"
            }
          ]
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      ]
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            }
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