Intel

AIKIDO-2026-10080

harfbuzz.harfbuzz is vulnerable to NULL Pointer Dereference

NULL Pointer DereferenceGHSA-xvjr-f2r9-c7ww Published Jan 26, 2026

53

Medium Risk

This Affects:

c++harfbuzz.harfbuzz
6.0.0 - 12.3.0
Fixed in 12.3.1
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TL;DR

Affected versions of this package lack proper handling of memory allocation failures in the cmap subtable Unicode cache path, which could lead to a denial of service due to crashes or undefined behavior when allocation fails. The patched version adds a test to verify correct behavior when hb_malloc fails, ensuring graceful failure handling.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

harfbuzz.harfbuzz is vulnerable to NULL Pointer Dereference in versions 6.0.0 - 12.3.0.

How to fix this

Upgrade the harfbuzz.harfbuzz library to the patch version.

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