NULL Pointer Dereference Affecting harfbuzz/harfbuzz package, versions [,2.13.1)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-UNMANAGED-HARFBUZZHARFBUZZ-14913780
- published12 Jan 2026
- disclosed10 Jan 2026
- creditJungWoo Park
Introduced: 10 Jan 2026
CVE-2026-22693 (opens in a new tab)How to fix?
Upgrade harfbuzz/harfbuzz to version 2.13.1 or higher.
Overview
Affected versions of this package are vulnerable to NULL Pointer Dereference via the SubtableUnicodesCache::create function when memory allocation fails and the return value is not checked before object construction. An attacker can cause a segmentation fault and crash the process by triggering memory allocation failures, such as through low-memory conditions or custom allocators.