CVE-2026-21789

HCL Connections is vulnerable to broken access control

Published May 18, 2026 CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed
Description
HCL Connections contains a broken access control vulnerability that may allow unauthorized user to update data in certain scenarios.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Hcltech
Hcltech connections
Vendors & Products Hcltech
Hcltech connections
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description HCL Connections contains a broken access control vulnerability that may allow unauthorized user to update data in certain scenarios.
Title HCL Connections is vulnerable to broken access control
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 4.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
HCL
Published
Updated
May 18, 2026, 7:54 PM
Reserved
Jan 5, 2026, 4:08 PM
Status
Deferred
Published
May 18, 2026, 8:16 PM
Modified
Oct 26, 2026, 1:10 PM