---
cve: "CVE-2026-113873"
severity: "HIGH"
cvss: 8.7
epss: "0.5%"
vendor: "SmileCDR"
kev: false
exploited: false
published: "2026-10-22 18:17:27"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-29T19:24:43+01:00"
---

# CVE-2026-113873

> 8.7 HIGH

## Beschreibung

SmileCDR HAPI FHIR does not properly handle highly compressed data, allowing an unauthenticated attacker to send compressed payloads that exhaust server heap or crash certain services when decompressed.

## CNA-Record (Kanon, cvelistV5)

- CNA: **cisa-cg**
- State: PUBLISHED
- Stand: 2026-10-26 12:57:42
- CNA-CVSS: **7.5** (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Schwachstellen-Klasse

- **CWE-409** — Improper Handling of Highly Compressed Data (Data Amplification)
  The product does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output.

## Referenzen

- <https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-294-01.json>
- <https://www.cve.org/CVERecord?id=CVE-2026-113873>
- <https://abhinavagarwal07.github.io/posts/hapi-fhir-authorization-findings/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-113873/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_