Out-of-bounds read in libheif - CVE-2026-41069
Published: May 20, 2026
Vulnerability identifier: #VU131965
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-41069
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to out-of-bounds read in SampleAuxInfoReader::SampleAuxInfoReader in libheif/sequences/track.cc when parsing a malformed HEIF sequence file through heif_context_read_from_file. A remote attacker can supply a specially crafted file to cause a denial of service.
User interaction is required to open or process a crafted HEIF file.
Affected software
libheif
How to mitigate CVE-2026-41069
Install security update from vendor's website.
libheif - update to 1.22.0