This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-49271 →

DEBIAN-CVE-2026-49271

libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.1, the uncompressed HEIF decoder validates explicit icef compressed-...

Original description

The description as published by the source.

libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.1, the uncompressed HEIF decoder validates explicit icef compressed-unit offsets using unit_offset + unit_size. Because the addition can wrap, a crafted HEIF file can pass the range check and then construct a vector from iterators outside the compressed item buffer, producing an out-of-bounds heap read and crash. Version 1.22.1 patches the issue.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 libheif

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 libheif

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.19.8-1+deb13u1"}]}]

Debian:14 libheif

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.23.1-1"}]}]

References

advisory security-tracker.debian.org