{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-75820",
"assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
"state": "PUBLISHED",
"assignerShortName": "CERT-PL",
"dateReserved": "2026-08-18T10:13:29.246Z",
"datePublished": "2026-10-06T10:57:59.621Z",
"dateUpdated": "2026-10-06T12:49:39.265Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
"shortName": "CERT-PL",
"dateUpdated": "2026-10-06T10:57:59.621Z"
},
"title": "Integer Truncation Leading to Heap Corruption in GNU Aspell",
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound",
"type": "CWE"
}
]
}
],
"affected": [
{
"vendor": "GNU",
"product": "Aspell",
"repo": "https://github.com/GNUAspell/aspell",
"modules": [
"WritableDict::add()"
],
"programFiles": [
"modules/speller/default/writable.cpp"
],
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "0.60.8.3",
"versionType": "semver"
}
],
"defaultStatus": "unknown"
}
],
"cpeApplicability": [
{
"operator": "OR",
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:gnu:aspell:*:*:*:*:*:*:*:*",
"versionStartIncluding": "0",
"versionEndIncluding": "0.60.8.2"
}
]
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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.",
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"value": "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.