---
cve: "CVE-2026-26932"
severity: "MEDIUM"
cvss: 5.7
epss: "45%"
vendor: "Elastic"
kev: false
exploited: false
published: "2026-02-26 18:23:07"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-05T18:42:45+02:00"
---

# CVE-2026-26932

> 5.7 MEDIUM

## Beschreibung

Improper Validation of Array Index (CWE-129) in the PostgreSQL protocol parser in Packetbeat can lead Denial of Service via Input Data Manipulation (CAPEC-153). An attacker can send a specially crafted packet causing a Go runtime panic that terminates the Packetbeat process. This vulnerability requires the pgsql protocol to be explicitly enabled and configured to monitor traffic on the targeted port.

## CVSS-Vektor

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

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

## Schwachstellen-Klasse

- **CWE-129** — Improper Validation of Array Index
  The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.

## Angriffsmuster (CAPEC)

- [CAPEC-100 — Overflow Buffers](https://capec.mitre.org/data/definitions/100.html) _(Severity: Very High)_

## Patch verfügbar (OSV)

- 18eaf5054451b6c86268efd4eb50517c26471e1f (Commit)
- 090edf6777335b72756841fc32203573a0cc1073 (Commit)

## Referenzen

- <https://discuss.elastic.co/t/packetbeat-8-19-11-9-2-5-security-update-esa-2026-10/385247>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-26932) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_