CVE-2026-21827
LowCVSS 3.1Exploitation Probability (EPSS)
Low risk5th percentile - higher than 5% of all known CVEs
Summary
HCL Connections is vulnerable to information disclosure, which could allow a user to obtain data they are not entitled to, caused by improper handling of request data.
Risk Assessment
A user could gain access to confidential information of other users, potentially leading to privacy breaches and data security issues.
Recommendation
Apply vendor-provided patches and monitor the system for unauthorized access.
Other vulnerabilities in HCL Connections
See all- CVE-2025-62341Low
HCL Connections is vulnerable to server-side request forgery (SSRF) when an internal server is compromised, possibly allowing an attacker to send unauthorized requests in certain scenarios leading to information disclosure or security bypass.
- CVE-2026-56538Low
An information disclosure vulnerability in HCL Connections via a specific endpoint. In certain scenarios, this could lead to sensitive information being disclosed to unauthorized users.
- CVE-2026-56537Low
An information disclosure vulnerability in HCL Connections due to improper handling of request data. A user can obtain sensitive information they are not entitled to.
- CVE-2025-15619Low
A broken access control vulnerability in HCL Connections may allow an unauthorized user to view data in a single specific scenario.
Original NVD description (English source)
HCL Connections is vulnerable to an information disclosure vulnerability which could allow a user to obtain sensitive information they are not entitled to, caused by improper handling of request data they are not entitled to, caused by improper handling of request data.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS