TREK: Public trip share link ignores the `share_map` permission server-side (client-enforced authorization → itinerary/location disclosure)

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-77320
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-24 19:17:16 UTC
Updated2026-09-29 04:17:58 UTC
DescriptionTREK 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.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

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

EPSS: 0.002310000 probability, percentile 0.126090000 (date 2026-09-29)

Problem Types: CWE-200 | CWE-284 | CWE-602 | CWE-200 CWE-200: Exposure of Sensitive Information to an Unauthorized Actor | CWE-284 CWE-284: Improper Access Control | CWE-602 CWE-602: Client-Side Enforcement of Server-Side Security

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Mauriceboe TREK affected < 3.3.0 Not specified

References

ReferenceSourceLinkTags
github.com/liketrek/TREK/pull/1520 [email protected] github.com
github.com/liketrek/TREK/releases/tag/v3.3.0 [email protected] github.com
github.com/liketrek/TREK/commit/19064b39176660f3be3a2df198c87949504046e2 [email protected] github.com
github.com/liketrek/TREK/security/advisories/GHSA-9hc8-p7gm-p7mx 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
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