{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-103658",
        "assignerOrgId": "98a01053-8a31-4f6d-9aa9-252be161adc6",
        "state": "PUBLISHED",
        "assignerShortName": "Anthropic",
        "dateReserved": "2026-10-01T08:19:42.892Z",
        "datePublished": "2026-10-12T21:24:48.600Z",
        "dateUpdated": "2026-10-12T22:12:10.457Z"
    },
    "containers": {
        "cna": {
            "descriptions": [
                {
                    "lang": "en",
                    "value": "GNU Aspell 0.60.8.2 (first vulnerable version is not known) contains a heap-based buffer overflow write (CWE-122) in its read-only dictionary loader. String::reserve() in common/string.hpp computes its capacity check with a signed int ((int)s + 1), so a requested size of 0x7FFFFFFF wraps negative and the backing buffer is never grown. ReadOnlyDict::load() in modules/speller/default/readonly_ws.cpp passes the unvalidated 32-bit size fields from a .rws dictionary header into this path, so a crafted .rws file with a valid endian marker (12345678) and an oversized length field (e.g. lang_name_size = 0x7FFFFFFF) causes attacker-controlled data to be written out of bounds past an undersized heap allocation. An attacker who induces a victim to load a malicious dictionary — for example via aspell dump master <file> — can corrupt heap memory, resulting in denial of service and potentially code execution. Fixed in b830b6e and will be fixed in release 0.60.8.3."
                }
            ],
            "affected": [
                {
                    "vendor": "GNU",
                    "product": "Aspell",
                    "packageURL": "pkg:github/GNUAspell/aspell",
                    "versions": [
                        {
                            "version": "0.60.8.2",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "type": "CWE",
                            "cweId": "CWE-122",
                            "description": "CWE-122 Heap-based Buffer Overflow"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://github.com/GNUAspell/aspell/security/advisories/GHSA-p35p-2mw5-fj5j"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Anthropic, Claude"
                },
                {
                    "lang": "en",
                    "type": "analyst",
                    "value": "Ada Logics"
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
                        "baseScore": 5.9,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "providerMetadata": {
                "orgId": "98a01053-8a31-4f6d-9aa9-252be161adc6",
                "shortName": "Anthropic",
                "dateUpdated": "2026-10-12T22:12:10.457Z"
            }
        }
    }
}