Vulnerability · Published Aug 20, 2026 · Assigned by GitHub_M

CVE-2026-62945TREK: Cross-trip reservation title disclosure via file links

Medium 4.3

In plain English

A medium-severity authorization bypass via user-controlled key in TREK from mauriceboe. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.3%top 72.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

TREK is a collaborative travel planner. Prior to 3.1.3, TREK file upload, update, and link actions accept attacker-controlled reservation_id, place_id, and assignment_id values without using findForeignLinkTarget() to verify that the referenced object belongs to the file's trip. An authenticated user with file-edit permission on any accessible trip can submit a foreign reservation identifier through POST /api/trips/:tripId/files/:id/link, POST /api/trips/:tripId/files, or PUT /api/trips/:tripId/files/:id. Subsequent reads through FILE_SELECT or getFileLinks() join the foreign reservation and return reservation_title, disclosing reservation existence and titles across private trip boundaries. This issue is fixed in version 3.1.3.

Affected products (as reported)

Vendor	Product	Versions
mauriceboe	TREK	< 3.1.3

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

https://github.com/liketrek/TREK/security/advisories/GHSA-r4cp-666p-8f69 x_refsource_CONFIRM
https://github.com/liketrek/TREK/pull/1324 x_refsource_MISC
https://github.com/liketrek/TREK/commit/03cdb4d27689922460ba87085d04b426d4d40d26 x_refsource_MISC
https://github.com/liketrek/TREK/releases/tag/v3.1.3 x_refsource_MISC