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 Boxstts::getsample_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.
{
"license": "CC-BY-4.0",
"sources": [
{
"published": "2026-05-19T20:16:18.780Z",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32739",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-32739",
"database_specific": {
"status": "Analyzed"
},
"modified": "2026-05-20T14:17:13.740Z",
"id": "CVE-2026-32739",
"imported": "2026-06-05T14:52:24.521Z"
},
{
"published": "2026-05-19T19:10:03Z",
"html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-30975",
"url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-30975",
"modified": "2026-05-20T13:07:09Z",
"id": "EUVD-2026-30975",
"imported": "2026-06-05T14:52:25.868Z"
}
]
}