CVEvulnerability

CVE-2026-32739

6.5 MEDIUM Published 2026-05-19 Modified 2026-07-24 Official page ↗
Status
Analyzed
Published
2026-05-19
Last modified
2026-07-24
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-835

Description

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 800-byte HEIF sequence file causes an infinite loop in Box_stts::get_sample_duration(), consuming 100% CPU indefinitely with zero progress, leading to DoS. The loop has no iteration limit or timeout and is triggered during file open (parsing) - before any user interaction or image decoding. The process stays alive (no crash, no error logged), making it invisible to crash-based monitoring. This issue has been fixed in version 1.22.0.

Affected configurations

• struktur libheif (< 1.22.0)

Related

Weakness · CWE (1)

  • CWE-835 Loop with Unreachable Exit Condition weakness

References