CVEvulnerability

CVE-2026-49271

6.5 MEDIUM Published 2026-06-19 Modified 2026-10-25 Official page ↗
Status
Analyzed
Published
2026-06-19
Last modified
2026-10-25
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weaknesses
CWE-125

Description

libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.1, the uncompressed HEIF decoder validates explicit icef compressed-unit offsets using unit_offset + unit_size. Because the addition can wrap, a crafted HEIF file can pass the range check and then construct a vector from iterators outside the compressed item buffer, producing an out-of-bounds heap read and crash. Version 1.22.1 patches the issue.

Affected configurations

• struktur libheif (< 1.22.1)

Related

Weakness · CWE (1)

  • CWE-125 Out-of-bounds Read weakness

References