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TI-2026-39354 Aliases CVE-2026-54508

TREK: Blind SSRF via unvalidated redirect-following in Google/Naver list import and Maps URL resolution

Priority LOW 24CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00427 37th percentileScored 2026-11-07
Fix Fixed TREK (mauriceboe): 3.1.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
mauriceboeTREKbefore 3.1.03.1.0Patch availableCNA
  • TREK Vendormauriceboe Affected before 3.1.0 Fixed in 3.1.0 Patch available CNA

Remediation

  • Fix · CNA TREK (mauriceboe) Fixed in 3.1.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-54508

References

Other 4

  • TI-2026-53961 TREK: Server-Side Request Forgery via User-Configurable LLM Base URL CVSS 3.1HIGH 8.1
  • TI-2026-53960 TREK: Cross-user note-file deletion (IDOR / Broken Access Control) CVSS 3.1HIGH 7.1
  • TI-2026-53966 Information disclosure in mauriceboe TREK CVSS 3.1MEDIUM 5.3
  • TI-2026-33199 Time-based user enumeration in TREK authentication endpoint CVSS 3.1MEDIUM 5.3
  • TI-2026-39355 TREK IDOR: any authenticated user can read another user's journey share token (full journey leak) CVSS 3.1MEDIUM 6.5
  • TI-2026-39351 TREK: Stored cross-user HTML injection via trip title in the Journey suggestion banner CVSS 4.0LOW 2.0
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences