Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
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.
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
NONE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
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, component-interl… https://www.cve.org/CVERecord?id=CVE-2026-47178
Post summary
CVE-2026-47178 highlights a vulnerability in libheif 1.19.0–1.21.2 that is triggered by a crafted HEIF file utilizing an uncompressed `unci` codec; no exploit, PoC, or patch details are provided.
🚨*CVE* 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, component-interl… https://www.cve.org/CVERecord?id=CVE-2026-47178 ----- Traducción: CVE-2026-47178 lib… http://infoflow.cloud`
Post summary
The tweet announces CVE-2026-47178, noting a vulnerability in libheif involving crafted HEIF files, but gives only limited technical context without details about exploitation, patches, or active attacks.
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| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | struktur | libheif | - | - | - |