Vulnerability · Published May 18, 2026 · Assigned by HCL
CVE-2026-21789HCL Connections is vulnerable to broken access control
Medium 4.6
In plain English
A medium-severity incorrect authorization in Connections from HCLSoftware. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).
Severity (CVSS 3.1)4.6Medium
Exploit odds (30 days)0.1%top 98.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
HCL Connections contains a broken access control vulnerability that may allow unauthorized user to update data in certain scenarios.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| HCLSoftware | Connections | 8.0 |
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N