CVE-2026-86778
Received Received - Intake

Observable Response Discrepancy in Maksisoft Gym Allows Account Footprinting

Publication date: 2026-09-30

Last updated on: 2026-09-30

Assigner: Computer Emergency Response Team of the Republic of Turkey

Description
Observable response discrepancy vulnerability in Maksisoft Technology, IT, and Software Industry and Trade Inc. Maksisoft Gym allows Account Footprinting. This issue affects Maksisoft Gym: from 0.5.10 before 0.5.11.

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Meta Information

Published
2026-09-30
Last Modified
2026-09-30
Generated
2026-09-30
AI Q&A
2026-09-30
EPSS Evaluated
N/A
NVD
CVE-2026-86778
EUVD
EUVD-2026-89948

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
maksisoft gym From 0.5.10 (inc) to 0.5.11 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-204 The product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere.

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Executive Summary

This vulnerability is an observable response discrepancy issue in Maksisoft Gym software versions before 0.5.11. It allows attackers to gather information about user accounts by observing system responses, which can reveal details like whether an account exists or not.

Impact Analysis

This vulnerability could allow attackers to footprint accounts, meaning they can determine which accounts exist in the system. This information could be used for further attacks like targeted phishing or brute force attempts.

Mitigation Strategies

Update Maksisoft Gym to version 0.5.11 or later to address the vulnerability. Monitor network traffic for unusual account footprinting activities and restrict unnecessary network access to the application.

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