{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "0.60.8.2"
              }
            ],
            "source": "CPE_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "3de79d40aee4e9ccdc0d83856637949801a3d33b"
            }
          ],
          "repo": "https://github.com/gnuaspell/aspell",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "CERT-PL",
    "cwe_ids": [
      "CWE-190"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75820.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "0.60.8.3"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "GNU Aspell contains an integer truncation vulnerability in the WritableDict::add() function in modules/speller/default/writable.cpp. When loading a personal wordlist, the word length is stored as a single byte, causing truncation for words whose length is a multiple of 256. This leads to heap corruption. An attacker can exploit this by convincing a user to run aspell with a crafted personal wordlist containing such a word, resulting in denial of service.\n\n\n\nThis issue was fixed in commit 782ce94e4dc71eaec4ee1bd945eb3b9c47c5387d which will be released in version 0.60.8.3.",
  "id": "CVE-2026-75820",
  "modified": "2026-10-07T02:30:24.743994265Z",
  "published": "2026-10-06T10:57:59.621Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://aspell.net/"
    },
    {
      "type": "ADVISORY",
      "url": "https://cert.pl/en/posts/2026/10/CVE-2026-75818"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75820.json"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/GNUAspell/aspell"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-75820"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Integer Truncation Leading to Heap Corruption in GNU Aspell"
}