---
cve: "CVE-2026-9149"
severity: "MEDIUM"
cvss: 6.5
epss: "31%"
vendor: "Red Hat"
kev: false
exploited: false
published: "2026-05-21 00:16:35"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T05:38:22+02:00"
---

# CVE-2026-9149

> 6.5 MEDIUM · 🧪 PoC

## Beschreibung

A flaw was found in libsolv. This heap buffer overflow vulnerability occurs when a victim processes a specially crafted `.solv` file containing negative size values in the `repo_add_solv` function. This leads to an undersized memory allocation and a subsequent out-of-bounds write. An attacker could exploit this to cause a denial of service (DoS).

## 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 |

## Referenzen

- <https://access.redhat.com/errata/RHSA-2026:21333>
- <https://access.redhat.com/errata/RHSA-2026:28236>
- <https://access.redhat.com/errata/RHSA-2026:48818>
- <https://access.redhat.com/security/cve/CVE-2026-9149>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2460380>
- <https://github.com/openSUSE/libsolv/pull/617>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-9149) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_