Out-of-bounds Write Affecting libheif package, versions [0,]
Threat Intelligence
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-CONAN-LIBHEIF-16770139
- published20 May 2026
- disclosed19 May 2026
- creditElhananHaenel
Introduced: 19 May 2026
NewCVE-2026-32740 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Write through the image decoding process when handling grid tile chroma compositing. An attacker can execute arbitrary code or cause a denial of service by crafting a specially designed HEIF/AVIF file with a 1×4 grid of odd-height tiles.