Use of Uninitialized Resource Affecting libheif package, versions [,1.23.1)
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.
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Test your applications- Snyk IDSNYK-CONAN-LIBHEIF-16770124
- published20 May 2026
- disclosed19 May 2026
- creditElhananHaenel
Introduced: 19 May 2026
CVE-2026-32814 (opens in a new tab)How to fix?
Upgrade libheif to version 1.23.1 or higher.
Overview
Affected versions of this package are vulnerable to Use of Uninitialized Resource in the decoding process of grid-based HEIF or AVIF images when a corrupted tile fails to decode and the library returns a success status, resulting in uninitialized heap memory being exposed as pixel data. An attacker can access sensitive information from heap memory by submitting a crafted image file that triggers the leak during decoding. This is only exploitable if the default setting strict_decoding=false is used.