---
cve: "CVE-2026-75148"
severity: "MEDIUM"
cvss: 6.9
epss: "0.2%"
vendor: "jkuhlmann"
kev: false
exploited: false
published: "2026-08-19 13:37:42"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-23T01:26:36+02:00"
---

# CVE-2026-75148

> 6.9 MEDIUM · 🧪 PoC

## Beschreibung

cgltf through 1.15 contains an integer overflow vulnerability in the non-sparse accessor bounds check within cgltf_validate() that allows remote attackers to cause memory disclosure and denial of service by supplying crafted accessor count values. Attackers can provide malformed .gltf or .glb input with a specially crafted accessor count to overflow the unsigned integer multiplication of accessor stride and element count, causing the bounds check to pass and triggering a heap out-of-bounds read when cgltf_accessor_read_float() is subsequently called on the validated malformed accessor.

## CVSS-Vektor

```
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |

## Patch verfügbar (OSV)

- 360db1a95480fe102ae9c69b27c5d101167ff5ba (Commit)

## Referenzen

- <https://github.com/jkuhlmann/cgltf/issues/301>
- <https://www.vulncheck.com/advisories/cgltf-integer-overflow-via-cgltf-validate-accessor-bounds-check>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-75148) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_