TREK is a collaborative travel planner. Prior to 3.0.18, early return on missing user during login flow allowed an attacker to enumerate valid user accounts via response timing discrepancy. When an email address existed in the database, the backend performed a bcrypt password comparison before returning a 401 Unauthorized, adding ~370 ms of latency. When the email did not exist, the backend returned immediately (~10 ms). This ~14× timing difference could be detected without any difference in HTTP status codes or response bodies. This vulnerability is fixed in 3.0.18.
History

Fri, 29 May 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 29 May 2026 01:30:00 +0000

Type Values Removed Values Added
First Time appeared Mauriceboe
Mauriceboe trek
Vendors & Products Mauriceboe
Mauriceboe trek

Thu, 28 May 2026 22:15:00 +0000

Type Values Removed Values Added
Description TREK is a collaborative travel planner. Prior to 3.0.18, early return on missing user during login flow allowed an attacker to enumerate valid user accounts via response timing discrepancy. When an email address existed in the database, the backend performed a bcrypt password comparison before returning a 401 Unauthorized, adding ~370 ms of latency. When the email did not exist, the backend returned immediately (~10 ms). This ~14× timing difference could be detected without any difference in HTTP status codes or response bodies. This vulnerability is fixed in 3.0.18.
Title Time-based user enumeration in TREK authentication endpoint
Weaknesses CWE-203
CWE-208
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-29T14:46:58.159Z

Reserved: 2026-05-12T01:48:40.452Z

Link: CVE-2026-45410

cve-icon Vulnrichment

Updated: 2026-05-29T14:46:52.320Z

cve-icon NVD

Status : Deferred

Published: 2026-05-28T22:17:01.050

Modified: 2026-05-29T16:32:14.400

Link: CVE-2026-45410

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-29T01:15:06Z