CVE-2026-56537: HCL Connections is vulnerable to information disclosure

Severity: low (CVSS 3.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-27 · updated 2026-10-24
Weakness: CWE-209

Description

HCL Connections is vulnerable to information disclosure 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.

Affected products

HCL Software Connections: before 8.0; 8.0, 8.0-cumulative_release1, 8.0-cumulative_release10, 8.0-cumulative_release2, 8.0-cumulative_release3, 8.0-cumulative_release4 (+5) — fixed in 8.0

How to fix

Upgrade to a fixed version: HCL Software Connections 8.0. Check the vendor advisory for mitigations.

References

https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0132507

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