liketrek TREK up to 3.2.x Share Service shareService.ts getSharedTripData access control

Summaryinfo

A vulnerability was found in liketrek TREK up to 3.2.x. It has been declared as problematic. Impacted is the function getSharedTripData of the file server/src/services/shareService.ts of the component Share Service. Executing a manipulation can lead to access control. The identification of this vulnerability is CVE-2026-77320. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in liketrek TREK up to 3.2.x. This vulnerability affects the function getSharedTripData of the file server/src/services/shareService.ts of the component Share Service. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality. CVE summarizes:

TREK is a collaborative travel planner. Prior to 3.3.0, getSharedTripData in server/src/services/shareService.ts returns days, assignments, dayNotes, and places through GET /api/shared/:token even when the trip owner disables share_map. The client hides the map, but the public JSON response still includes the itinerary and place names, coordinates, addresses, descriptions, notes, and prices. Anyone holding the valid share token can therefore read location and route information that the owner explicitly chose not to share, although the random token remains required and the flaw does not permit modification. This issue is fixed in version 3.3.0.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-77320 since 08/20/2026. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 3.3.0 eliminates this vulnerability.

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Productinfo

Vendor

• liketrek

Name

• TREK

Version

• 3.0
• 3.1
• 3.2

Website

• Product: https://github.com/liketrek/TREK/

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