OOM from malicious IFD offset in golang.org/x/image/tiff

A maliciously crafted TIFF file can cause image decoding to attempt to allocate up 4GiB of memory, causing either excessive resource consumption or an out-of-memory error.

Problem type

CWE-400: Uncontrolled Resource Consumption

Affected products

golang.org/x/image

golang.org/x/image/tiff

< 0.38.0 - AFFECTED

References

go.dev

https://go.dev/cl/757660

go.dev

https://go.dev/issue/78267

pkg.go.dev

https://pkg.go.dev/vuln/GO-2026-4815

JSON source

https://cveawg.mitre.org/api/cve/CVE-2026-33809

Click to expand

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-33809",
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "dateUpdated": "2026-03-25T18:24:04.222Z",
    "dateReserved": "2026-03-23T20:35:32.813Z",
    "datePublished": "2026-03-25T18:24:04.222Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go",
        "dateUpdated": "2026-03-25T18:24:04.222Z"
      },
      "title": "OOM from malicious IFD offset in golang.org/x/image/tiff",
      "descriptions": [
        {
          "lang": "en",
          "value": "A maliciously crafted TIFF file can cause image decoding to attempt to allocate up 4GiB of memory, causing either excessive resource consumption or an out-of-memory error."
        }
      ],
      "affected": [
        {
          "vendor": "golang.org/x/image",
          "product": "golang.org/x/image/tiff",
          "collectionURL": "https://pkg.go.dev",
          "packageName": "golang.org/x/image/tiff",
          "programRoutines": [
            {
              "name": "buffer.fill"
            },
            {
              "name": "buffer.ReadAt"
            },
            {
              "name": "Decode"
            },
            {
              "name": "DecodeConfig"
            },
            {
              "name": "buffer.Slice"
            }
          ],
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "0.38.0"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-400: Uncontrolled Resource Consumption"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://go.dev/cl/757660"
        },
        {
          "url": "https://go.dev/issue/78267"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4815"
        }
      ]
    }
  }
}