{"id":"CVE-2026-113679","revision":"c0816854afdb4f9aa32bbca885ec1ca1","records":[{"revision":"c0816854afdb4f9aa32bbca885ec1ca1","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-113679","aliases":[],"title":"HarfBuzz 8.0.0 through 14.6.0 Out-of-Bounds Write via WebAssembly font_glyph_to_string","description":"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.","state":0,"publishedAt":"2026-10-20T15:40:40.379+00:00","modifiedAt":"2026-10-20T16:21:50.578+00:00","affected":[{"ecosystem":"Vendor product","name":"harfbuzz","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"harfbuzz\",\n                    \"product\": \"harfbuzz\",\n                    \"packageURL\": \"pkg:github/harfbuzz/harfbuzz\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"8.0.0\",\n                            \"lessThanOrEqual\": \"14.6.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"repo\": \"https://github.com/harfbuzz/harfbuzz\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":7.3,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7,"severity":"HIGH"}],"references":["https://github.com/harfbuzz/harfbuzz/pull/6414","https://github.com/harfbuzz/harfbuzz/commit/5e821de8256d01780566b5c8ab7886fae4c93da8","https://github.com/harfbuzz/harfbuzz/blob/14.6.0/src/hb-wasm-api-list.hh#L85","https://github.com/harfbuzz/harfbuzz/blob/14.6.0/src/hb-wasm-api-font.hh#L115-L123","https://www.vulncheck.com/advisories/harfbuzz-8.0.0-through-14.6.0-out-of-bounds-write-via-webassembly-font-glyph-to-string"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-113679","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-113679","identifiers":["CVE-2026-113679"]},"retained":false,"historicalAffected":[]}],"coverage":[]}