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.
This issue was fixed in commit 782ce94e4dc71eaec4ee1bd945eb3b9c47c5387d which will be released in version 0.60.8.3.
{
"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"
}
]
}