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CVE-2026-62291 libheif: Heap out of bounds write in libheif uncompressed encoder when writing images with mismatched auxiliary alpha dimensions

🗓️ 18 Aug 2026 21:21:32Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 2 Views

libheif up to 1.23.0 has heap out-of-bounds write in uncompressed encoder via mismatched alpha dimensions.

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20 Aug 2026 10:17Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.15.3
2