Exiv2: Integer Underflow in LoaderNative::getData() Causes Heap Buffer Overflow

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-27596",
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "dateUpdated": "2026-03-02T20:25:31.790Z",
    "dateReserved": "2026-02-20T19:43:14.601Z",
    "datePublished": "2026-03-02T19:40:48.559Z",
    "state": "PUBLISHED"
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        "dateUpdated": "2026-03-02T19:40:48.559Z"
      },
      "title": "Exiv2: Integer Underflow in LoaderNative::getData() Causes Heap Buffer Overflow",
      "descriptions": [
        {
          "lang": "en",
          "value": "Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. Prior to version 0.28.8, an out-of-bounds read was found in Exiv2. The vulnerability is in the preview component, which is only triggered when running Exiv2 with an extra command line argument, like -pp. The out-of-bounds read is at a 4GB offset, which usually causes Exiv2 to crash. This issue has been patched in version 0.28.8."
        }
      ],
      "affected": [
        {
          "vendor": "Exiv2",
          "product": "exiv2",
          "versions": [
            {
              "version": "< 0.28.8",
              "status": "affected"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-125: Out-of-bounds Read",
              "cweId": "CWE-125",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-191: Integer Underflow (Wrap or Wraparound)",
              "cweId": "CWE-191",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://github.com/Exiv2/exiv2/security/advisories/GHSA-3wgv-fg4w-75x7",
          "name": "https://github.com/Exiv2/exiv2/security/advisories/GHSA-3wgv-fg4w-75x7",
          "tags": [
            "x_refsource_CONFIRM"
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        },
        {
          "url": "https://github.com/Exiv2/exiv2/issues/3511",
          "name": "https://github.com/Exiv2/exiv2/issues/3511",
          "tags": [
            "x_refsource_MISC"
          ]
        },
        {
          "url": "https://github.com/Exiv2/exiv2/pull/3512",
          "name": "https://github.com/Exiv2/exiv2/pull/3512",
          "tags": [
            "x_refsource_MISC"
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        },
        {
          "url": "https://github.com/Exiv2/exiv2/commit/eaa9e21aabe06b3f91cfe66686f5ebc3ca3c0ed4",
          "name": "https://github.com/Exiv2/exiv2/commit/eaa9e21aabe06b3f91cfe66686f5ebc3ca3c0ed4",
          "tags": [
            "x_refsource_MISC"
          ]
        }
      ],
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    "adp": [
      {
        "providerMetadata": {
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP",
          "dateUpdated": "2026-03-02T20:25:31.790Z"
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        "title": "CISA ADP Vulnrichment",
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