Bug 2479971 (CVE-2026-32739) - CVE-2026-32739 libheif: libheif: Denial of Service via crafted HEIF sequence file
Summary: CVE-2026-32739 libheif: libheif: Denial of Service via crafted HEIF sequence ...
Keywords:
Status: NEW
Alias: CVE-2026-32739
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-19 20:01 UTC by OSIDB Bzimport
Modified: 2026-05-19 23:15 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-05-19 20:01:35 UTC 
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.
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