---
cve: "CVE-2026-54508"
severity: "MEDIUM"
cvss: 5.3
epss: "0.3%"
vendor: "mauriceboe"
kev: false
exploited: false
published: "2026-08-20 21:46:51"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-22T20:28:01+02:00"
---

# CVE-2026-54508

> 5.3 MEDIUM · 🧪 PoC

## Beschreibung

TREK is a collaborative travel planner. Prior to 3.1.0, TREK validates only the initial URL before native redirect following in importGoogleList() and importNaverList() in server/src/services/placeService.ts and resolveGoogleMapsUrl() in server/src/services/mapsService.ts. The affected sinks call checkSsrf() from server/src/utils/ssrfGuard.ts and then use fetch() with redirect: 'follow' instead of the DNS-pinned safeFetch() path, so a public attacker-controlled URL can redirect the server to loopback, RFC 1918, or cloud metadata addresses without revalidation. An authenticated trip member can reach the list-import routes, and any authenticated user can reach /api/maps/resolve-url, allowing blind GET requests to internal services without response-body reflection. This issue is fixed in version 3.1.0.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- ad893eb1cc75b6d56f402d73a6d41bd48ba7ae11 (Commit)
- f6af1d67a2630d77dcce39a92ac5599d08d7a5a1 (Commit)

## Referenzen

- <https://github.com/liketrek/TREK/security/advisories/GHSA-f5vh-p2h5-x735>
- <https://github.com/liketrek/TREK/pull/1185>
- <https://github.com/liketrek/TREK/commit/ad893eb1cc75b6d56f402d73a6d41bd48ba7ae11>
- <https://github.com/liketrek/TREK/releases/tag/v3.1.0>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-54508) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_