Out-of-bounds Read Affecting libheif package, versions [0,]


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.18% (8th percentile)

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  • Snyk IDSNYK-CONAN-LIBHEIF-18302852
  • published25 Jul 2026
  • disclosed21 Jul 2026
  • creditUnknown

Introduced: 21 Jul 2026

NewCVE-2026-47251  (opens in a new tab)
CWE-125  (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 Read via the vvdec_push_data2 function. An attacker can cause an out-of-bounds heap read by supplying a crafted HEIF file with a VVC track that exploits an integer overflow in the security check, bypassing intended protections.

CVSS Base Scores

version 4.0
version 3.1