{"schema":"threatline.record/2","record":{"id":"CVE-2026-113679","aliases":[],"summary":"HarfBuzz 8.0.0 through 14.6.0 Out-of-Bounds Write via WebAssembly font_glyph_to_string","details":"HarfBuzz 8.0.0 through 14.6.0 contains an out-of-bounds write vulnerability in the experimental WebAssembly shaper because the font_glyph_to_string import has a wrong WAMR signature. Attackers can supply a crafted font whose wasm module places the output buffer near linear memory's end, writing glyph-name bytes into host memory to crash or corrupt applications.","categories":["Unclassified"],"product":"harfbuzz","vendor":"harfbuzz","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-113679","source_modified_at":"2026-10-20T16:21:50.578Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"harfbuzz","vendor":"harfbuzz","versions":[{"version":"8.0.0","lessThanOrEqual":"14.6.0","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":7.3,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00165,"percentile":0.05486,"score_date":"2026-10-23"},"published_at":"2026-10-20T15:40:40.379Z","modified_at":"2026-10-20T16:21:50.578Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-113679","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-20T16:21:50.578Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-113679","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/harfbuzz/harfbuzz/pull/6414","tags":["patch","issue-tracking"]},{"source":"CVE List","url":"https://github.com/harfbuzz/harfbuzz/commit/5e821de8256d01780566b5c8ab7886fae4c93da8","tags":["patch"]},{"source":"CVE List","url":"https://github.com/harfbuzz/harfbuzz/blob/14.6.0/src/hb-wasm-api-list.hh#L85","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/harfbuzz/harfbuzz/blob/14.6.0/src/hb-wasm-api-font.hh#L115-L123","tags":["technical-description"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/harfbuzz-8.0.0-through-14.6.0-out-of-bounds-write-via-webassembly-font-glyph-to-string","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"total","assessed_at":"2026-10-20T16:21:23.456923Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-20T16:21:50.578Z","content_hash":"3a93273f861931322246b7bc2c6584d19a6f98465920d5220e713e7d195be208"}}