HarfBuzz 8.0.0 through 14.6.0 Out-of-Bounds Write via WebAssembly font_glyph_to_string
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.
CVE-2026-113679
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-113679
harfbuzz
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/harfbuzz/harfbuzz",
"vendor": "harfbuzz",
"product": "harfbuzz",
"versions": [
{
"status": "affected",
"version": "8.0.0",
"versionType": "semver",
"lessThanOrEqual": "14.6.0"
}
],
"packageURL": "pkg:github/harfbuzz/harfbuzz",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-113679
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #42379 · Revision 1
- Added to Heist Feed
- Publisher date