---
cve: "CVE-2026-92823"
severity: "MEDIUM"
cvss: 6.2
epss: "0.2%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2026-10-21 03:18:37"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-10-29T17:13:20+01:00"
---

# CVE-2026-92823

> 6.2 MEDIUM

## Beschreibung

A flaw was found in libmodulemd. In builds with rpmio support enabled, compressed modulemd YAML is decompressed through a custom read handler that does not enforce a cumulative decompressed-size limit before parsing. An attacker who can supply a highly compressible compressed YAML file can cause excessive CPU and memory consumption, resulting in a denial of service.

## CNA-Record (Kanon, cvelistV5)

- CNA: **redhat**
- State: PUBLISHED
- Stand: 2026-10-21 15:49:05
- CNA-CVSS: **6.2** (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **partial**

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | 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://access.redhat.com/security/cve/CVE-2026-92823>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2478703>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-92823/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_