This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-47178 →

DEBIAN-CVE-2026-47178

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.19.0 through 1.21.2, a crafted HEIF file (uncompressed `unci` codec, tiled,...

Original description

The description as published by the source.

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.19.0 through 1.21.2, a crafted HEIF file (uncompressed unci codec, tiled, component-interleaved, 4:2:0) triggers a heap out-of-bounds write in libheif's uncompressed tile decoder. The write overwrites the C++ vtable pointer of an adjacent unc_decoder_component_interleave object; the next virtual call dispatches to an attacker-chosen address. Version 1.22.0 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