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.
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Affected Vendors & Products
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 20 Oct 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | HarfBuzz 8.0.0 through 14.6.0 Out-of-Bounds Write via WebAssembly font_glyph_to_string | |
| First Time appeared |
Harfbuzz Project
Harfbuzz Project harfbuzz |
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| Weaknesses | CWE-787 | |
| CPEs | cpe:2.3:a:harfbuzz_project:harfbuzz:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Harfbuzz Project
Harfbuzz Project harfbuzz |
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| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-20T16:21:50.578Z
Reserved: 2026-10-20T14:50:55.487Z
Link: CVE-2026-113679
No data.
Status : Received
Published: 2026-10-20T16:17:12.770
Modified: 2026-10-20T16:17:12.770
Link: CVE-2026-113679
No data.
OpenCVE Enrichment
No data.
Weaknesses