---
cve: "CVE-2026-41069"
severity: "MEDIUM"
cvss: 6.5
epss: "0.3%"
vendor: "strukturag"
kev: false
exploited: false
published: "2026-05-22 20:49:16"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-23T01:37:48+02:00"
---

# CVE-2026-41069

> 6.5 MEDIUM · 🧪 PoC

## Beschreibung

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a malformed HEIF sequence file can trigger an out-of-bounds read in core sequence parsing logic, causing DoS. A malformed file can have stco.entry_count == 0 (creating no chunks) while still passing validation because saio.entry_count == 0 matches, but with saiz.sample_count > 0 the SampleAuxInfoReader constructor still enters its loop. This leads to an out-of-bounds dereference on the empty chunks[0] in chunked mode.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 0c81a846b7401dbdb7118afd0761057f21e43511 (Commit)

## Referenzen

- <https://github.com/strukturag/libheif/security/advisories/GHSA-p82x-fpmv-576r>
- <https://github.com/strukturag/libheif/releases/tag/v1.22.0>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-41069) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_