CVE-2026-62289

{
  "id": "CVE-2026-62289",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-18T22:17:02.720",
  "lastModified": "2026-10-22T16:09:59.560",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted HEIF or AVIF file containing a clean aperture box can reduce an image dimension to zero and crash or corrupt tiling results when heif_image_handle_get_image_tiling(handle, 1, &tiling) is called. ImageItem::get_heif_image_tiling() returns already transformed dimensions, and process_image_transformations_on_tiling() applies the clean aperture transformation again. The second application passes zero to Box_clap::left_rounded(0), where image_width minus one underflows and constructs Fraction(0xFFFFFFFF, 2). Debug builds reach an assertion and abort, while release builds can return a corrupt crop and zero-width tiling result. The affected implementation spans libheif/image-items/image_item.cc, libheif/context.cc, and libheif/box.cc. This issue is fixed in version 1.23.1."
    },
    {
      "lang": "es",
      "value": "libheif es un decodificador y codificador de formato de archivo HEIF y AVIF. En la versión 1.23.0 y anteriores, un archivo HEIF o AVIF manipulado que contiene una caja de apertura limpia puede reducir una dimensión de imagen a cero y provocar un fallo o corromper los resultados del mosaico cuando se llama a heif_image_handle_get_image_tiling(handle, 1, &tiling). ImageItem::get_heif_image_tiling() devuelve dimensiones ya transformadas, y process_image_transformations_on_tiling() aplica la transformación de apertura limpia de nuevo. La segunda aplicación pasa cero a Box_clap::left_rounded(0), donde image_width menos uno provoca un desbordamiento negativo y construye Fraction(0xFFFFFFFF, 2). Las compilaciones de depuración alcanzan una aserción y abortan, mientras que las compilaciones de lanzamiento pueden devolver un recorte corrupto y un resultado de mosaico de ancho cero. La implementación afectada abarca libheif/image-items/image_item.cc, libheif/context.cc y libheif/box.cc. Este problema está corregido en la versión 1.23.1."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "strukturag",
          "product": "libheif",
          "versions": [
            {
              "version": "< 1.23.1",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-19T16:49:33.062873Z",
          "id": "CVE-2026-62289",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-191"
        },
        {
          "lang": "en",
          "value": "CWE-617"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/strukturag/libheif/commit/f01870c1d7323a3003796d58eba7fff502be994c",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/strukturag/libheif/releases/tag/v1.23.1",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/strukturag/libheif/security/advisories/GHSA-jc8f-p23p-5hjg",
      "source": "[email protected]"
    }
  ]
}