CVE-2026-113679
Published:October 20, 2026
Updated:November 04, 2026
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.
Affected Packages
https://github.com/harfbuzz/harfbuzz.git (GITHUB):
Affected version(s) >=8.0.0 <15.0.0 || =9.0.0 <15.0.0 || >=10.0.0 <15.0.0 || >=11.0.0 <15.0.0 || >=12.0.0 <15.0.0 || >=13.0.0 <15.0.0 || >=14.0.0 <15.0.0Fix Suggestion:
Update to version 15.0.0Related Resources (8)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.3
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Out-of-bounds Write
EPSS
Base Score:
0.17