CVE-2026-21789 - Vulnerability Details - OpenCVE

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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

HCLSoftware

Connections

unaffected

Version	Status	Constraints
`8.0`	affected	—

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0129719

History

Mon, 18 May 2026 20:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mon, 18 May 2026 19:30:00 +0000

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		https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0129719
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'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: HCL

Published: 2026-05-18T19:17:18.844Z

Updated: 2026-05-18T19:54:06.181Z

Reserved: 2026-01-05T16:08:02.277Z

Link: CVE-2026-21789

Vulnrichment

Updated: 2026-05-18T19:53:56.847Z

NVD

Status : Deferred

Published: 2026-05-18T20:16:37.607

Modified: 2026-05-18T20:23:31.147

Link: CVE-2026-21789

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-05-18T20:30:05Z

Weaknesses

CWE-863

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