CVE-2026-56583
Undergoing Analysis Undergoing Analysis - In Progress

Concurrent Login Vulnerability in HCL MyCloud

Publication date: 2026-07-21

Last updated on: 2026-07-21

Assigner: HCL Software

Description
HCL MyCloud was affected with Concurrent Login Vulnerability. It may increase the risk of unauthorized access, session hijacking, and account misuse.

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Meta Information

Published
2026-07-21
Last Modified
2026-07-21
Generated
2026-07-21
AI Q&A
2026-07-21
EPSS Evaluated
N/A
NVD
CVE-2026-56583
EUVD
EUVD-2026-46346

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
hcl mycloud *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-613 According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization."

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Executive Summary

HCL MyCloud has a concurrent login vulnerability that allows multiple simultaneous sessions for the same user account. This could enable unauthorized access if attackers exploit it to hijack active sessions or misuse legitimate credentials.

Impact Analysis

This vulnerability may allow attackers to access your account without your knowledge, hijack active sessions, or misuse your credentials for malicious activities. It increases the risk of data breaches or unauthorized actions performed under your identity.

Compliance Impact

The vulnerability increases the risk of unauthorized access and session hijacking, which could lead to data breaches or unauthorized data exposure. This may impact compliance with standards like GDPR and HIPAA by compromising data confidentiality and integrity.

Mitigation Strategies

Implement session management controls to prevent concurrent logins. Review and update authentication mechanisms to ensure session uniqueness. Monitor for unusual login patterns or multiple active sessions per account.

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