{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": [
              "cpe:2.3:a:openimageio:openimageio:*:*:*:*:*:*:*:*",
              "cpe:2.3:a:openimageio:openimageio:3.2.0.0:dev:*:*:*:*:*:*",
              "cpe:2.3:a:openimageio:openimageio:3.2.0.2:dev:*:*:*:*:*:*"
            ],
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.0.18.0"
              },
              {
                "introduced": "3.1.0.0"
              },
              {
                "fixed": "3.1.13.0"
              },
              {
                "introduced": "3.2.0.0-dev"
              },
              {
                "last_affected": "3.2.0.0-dev"
              },
              {
                "introduced": "3.2.0.2-dev"
              },
              {
                "last_affected": "3.2.0.2-dev"
              }
            ],
            "source": [
              "CPE_RANGE",
              "CPE_STRING"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "54491b2a0c8e4b902c78e23697714220cc001ec9"
            },
            {
              "fixed": "3520073fbb513895a92c5f340a7685690dff6036"
            },
            {
              "introduced": "a0940a9f1e4a8ff20edc9d550a4dea4723d1aa58"
            },
            {
              "last_affected": "3091061460815d2c8ba885678429028d5cc938e1"
            }
          ],
          "repo": "https://github.com/academysoftwarefoundation/openimageio",
          "type": "GIT"
        }
      ],
      "versions": [
        "3.2.0.0-dev",
        "3.2.0.2-dev"
      ]
    }
  ],
  "aliases": [
    "GHSA-mq8j-73c4-cr55"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43996.json"
  },
  "details": "OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, the bounds check in TGAInput::decode_pixel computes k + palbytespp as unsigned 32-bit arithmetic. When k = 0xFFFFFFFC and palbytespp = 4, the addition wraps to 0, which compares less than palette_alloc_size and passes the check. The subsequent palette access uses the unwrapped k (0xFFFFFFFC) as the index, reading ~4 GB past the start of the palette buffer — SEGV. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.",
  "id": "CVE-2026-43996",
  "modified": "2026-07-15T01:48:56.231480157Z",
  "published": "2026-05-14T19:08:26.307Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-mq8j-73c4-cr55"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43996.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43996"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenImageIO: Integer wraparound in bounds check of decode_pixel leads to out-of-bounds read in TGA paletted image decoder"
}