CVE-2026-21789 MEDIUM

CVE-2026-21789: HCL Connections is vulnerable to broken access control

Vendor Hclsoftware
Product Connections
Weakness CWE-863 · Incorrect authorization
Published May 18, 2026
Last update May 18, 2026
View on NVD All CVEs

CVSS base score

4.6/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

What the vulnerability does

01Description

HCL Connections contains a broken access control vulnerability that may allow unauthorized user to update data in certain scenarios.

Key dates

02Disclosure timeline

May 18, 2026 CVE published
May 18, 2026 Record updated