{"id":"CVE-2026-113680","summary":"HarfBuzz 8.0.0 through 14.6.0 WebAssembly Shaper NULL Pointer Dereference DoS","details":"HarfBuzz from 8.0.0 through 14.6.0 contains a NULL pointer dereference vulnerability in the experimental WebAssembly shaper host imports buffer_set_contents, face_create, and font_set_coords. Attackers can supply a crafted font whose embedded wasm module passes out-of-range addresses with non-zero lengths, crashing any application that shapes text with the font.","modified":"2026-10-21T09:08:19.407696437Z","published":"2026-10-20T15:40:41.101Z","database_specific":{"cwe_ids":["CWE-476"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113680.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113680.json"},{"type":"PACKAGE","url":"https://github.com/harfbuzz/harfbuzz"},{"type":"ARTICLE","url":"https://github.com/harfbuzz/harfbuzz/blob/14.6.0/src/hb-wasm-api-buffer.hh#L153-L181"},{"type":"ARTICLE","url":"https://github.com/harfbuzz/harfbuzz/blob/14.6.0/src/hb-wasm-api-face.hh#L34-L49"},{"type":"ARTICLE","url":"https://github.com/harfbuzz/harfbuzz/blob/14.6.0/src/hb-wasm-api-font.hh#L241-L258"},{"type":"FIX","url":"https://github.com/harfbuzz/harfbuzz/commit/a71aa86c2bac114fafb6b47f8da02024ecb44fa6"},{"type":"FIX","url":"https://github.com/harfbuzz/harfbuzz/pull/6414"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113680"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/harfbuzz-8.0.0-through-14.6.0-webassembly-shaper-null-pointer-dereference-dos"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/harfbuzz/harfbuzz","events":[{"introduced":"b4305532a7746422e0b615eee6304119c1092fd8"},{"last_affected":"c7a7457b7385f33178e8cf87615ca077a810bbe7"},{"fixed":"a71aa86c2bac114fafb6b47f8da02024ecb44fa6"}],"database_specific":{"extracted_events":[{"source":"AFFECTED_FIELD","strategy":"StandardRange","range":[{"introduced":"8.0.0"},{"last_affected":"14.6.0"}]},{"range":[{"fixed":"a71aa86c2bac114fafb6b47f8da02024ecb44fa6"}],"source":"REFERENCES_COMMIT"}]}}],"versions":["14.6.0","14.5.1","14.5.0","14.4.0","14.3.1","14.3.0","14.2.1","14.2.0","14.1.0","14.0.0","13.2.1","13.2.0","13.1.1","13.1.0","13.0.1","13.0.0","12.3.2","12.3.1","12.3.0","12.2.0","12.1.0","12.0.0","11.5.1","11.5.0","11.4.5","11.4.4","11.4.3","11.4.2","11.4.1","11.4.0","10.4.0","10.3.0","10.2.0","10.1.0","10.0.1","10.0.0","9.0.0","8.5.0","8.4.0","8.3.1","8.3.0","8.2.2","8.2.1","8.2.0","8.1.1","8.1.0","8.0.1","8.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-113680.json","vanir_signatures":[{"deprecated":false,"digest":{"line_hashes":["21043692785603237262383376738035470715","1622352912418594682173040541431463368","122229622980099713993575888797501747548","105668027676804281073094374178135636381","12468734156142861226163835462775217253","313549749238168258834715126913766328710","101482941919694616185061697819650077446"],"threshold":0.9},"id":"CVE-2026-113680-8ad609c0","signature_type":"Line","signature_version":"v1","source":"https://github.com/harfbuzz/harfbuzz/commit/a71aa86c2bac114fafb6b47f8da02024ecb44fa6","target":{"file":"src/hb-wasm-api-buffer.hh"}},{"target":{"file":"src/hb-wasm-api-font.hh"},"deprecated":false,"digest":{"line_hashes":["215754414998390000651191467370020171669","187454067635986494864141231439484296791","150331631159064857333270010002516656691","97730127059863470302430515336232324113"],"threshold":0.9},"id":"CVE-2026-113680-a0fa03c2","signature_type":"Line","signature_version":"v1","source":"https://github.com/harfbuzz/harfbuzz/commit/a71aa86c2bac114fafb6b47f8da02024ecb44fa6"},{"signature_version":"v1","source":"https://github.com/harfbuzz/harfbuzz/commit/a71aa86c2bac114fafb6b47f8da02024ecb44fa6","target":{"file":"src/hb-wasm-api-face.hh"},"deprecated":false,"digest":{"line_hashes":["122334930419639421771088031634403208519","91362913712669522837420797240280491107","101658072982142257060002092107969725303","45026928834611667412944165800519199677","335457055938460134190324978197324712860","12982629399540886745940284917157254906"],"threshold":0.9},"id":"CVE-2026-113680-e3a84202","signature_type":"Line"}],"vanir_signatures_modified":"2026-10-21T09:08:19Z"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}