CVE-2026-113679: falha de alta gravidade em harfbuzz
HarfBuzz 8.0.0 through 14.6.0 Out-of-Bounds Write via WebAssembly font_glyph_to_string
Publicada em
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.3epss 0.2%
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.
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
Produtos afetados
harfbuzz · harfbuzzCVEs relacionadas — harfbuzz
No mesmo produto, das mais perigosas para as menos.
Referências
https://github.com/harfbuzz/harfbuzz/blob/14.6.0/src/hb-wasm-api-font.hh#L115-L123https://github.com/harfbuzz/harfbuzz/blob/14.6.0/src/hb-wasm-api-list.hh#L85https://github.com/harfbuzz/harfbuzz/commit/5e821de8256d01780566b5c8ab7886fae4c93da8https://github.com/harfbuzz/harfbuzz/pull/6414https://www.vulncheck.com/advisories/harfbuzz-8.0.0-through-14.6.0-out-of-bounds-write-via-webassembly-font-glyph-to-string