CVE-2026-113679
HIGH
CVSS 7.0
Published: 2026-10-20
Modified: 2026-10-20
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Threat Intelligence Pending
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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.
Quick Facts
| CVE ID | CVE-2026-113679 |
| CVSS Score | 7.0 |
| Vector | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Published | 2026-10-20 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |