{"schema":"threatline.record/2","record":{"id":"CVE-2026-103658","aliases":["GHSA-p35p-2mw5-fj5j"],"summary":"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 it","details":"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.","categories":["Unclassified"],"product":"Aspell","vendor":"GNU","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103658","source_modified_at":"2026-10-14T19:15:47.603Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Aspell","vendor":"GNU","versions":[{"status":"affected","version":"0.60.8.2","versionType":"semver"}],"defaultStatus":null},{"source":"GitHub Advisory Database","source_url":"https://github.com/GNUAspell/aspell/security/advisories/GHSA-p35p-2mw5-fj5j","source_modified_at":"2026-10-06T00:56:25Z","fetched_at":"2026-10-23T18:55:00.935475Z","package":{"name":"Aspell","ecosystem":null},"range":"likely all"}],"fixed_versions":[],"cvss":5.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00155,"percentile":0.04248,"score_date":"2026-10-23"},"published_at":"2026-10-12T21:24:48.600Z","modified_at":"2026-10-14T19:15:47.603Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-103658","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-14T19:15:47.603Z"},{"source":"GitHub Advisory Database","url":"https://github.com/GNUAspell/aspell/security/advisories/GHSA-p35p-2mw5-fj5j","fetched_at":"2026-10-23T18:55:00.935475Z","source_modified_at":"2026-10-06T00:56:25Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-103658","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","GitHub Advisory Database","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/GNUAspell/aspell/security/advisories/GHSA-p35p-2mw5-fj5j","tags":["exploit"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-14T19:15:22.350465Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-14T19:15:47.603Z","content_hash":"818bc2baf12b6675c89a917d7c2c128069e92fe46d551789c579f2b3b14ad085"}}