---
cve: "CVE-2026-91924"
severity: "HIGH"
cvss: 8.4
epss: "25%"
vendor: "sosedoff"
kev: false
exploited: false
published: "2026-09-15 11:17:13"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-17T10:34:19+02:00"
---

# CVE-2026-91924

> 8.4 HIGH · 🧪 PoC

## Beschreibung

pgweb through 0.17.0 leaves the POST /api/connect endpoint unguarded when connect-backend authorization is configured, allowing attackers to supply arbitrary database connection strings. Attackers can bypass the resource-to-database mapping by providing a custom session identifier and connection URL to access unauthorized databases and internal services.

## CVSS-Vektor

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

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

## Referenzen

- <https://github.com/sosedoff/pgweb/issues/869>
- <https://github.com/sosedoff/pgweb>
- <https://github.com/sosedoff/pgweb/blob/6b0b0244d1aefd6971999b03481eeeaa4ec7cf55/pkg/api/routes.go>
- <https://github.com/sosedoff/pgweb/blob/6b0b0244d1aefd6971999b03481eeeaa4ec7cf55/pkg/api/api.go>
- <https://www.vulncheck.com/advisories/pgweb-through-0.17.0-missing-authorization-on-direct-connect-endpoint>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-91924) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_