CVE-2026-21789: CWE-863 Incorrect Authorization in HCLSoftware Connections
CVE-2026-21789 is a medium severity vulnerability in HCL Connections version 8. 0 involving broken access control. This flaw may allow an unauthorized user with limited privileges to update certain data under specific conditions. The vulnerability does not appear to have an official patch or remediation guidance published yet, and no known exploits are reported in the wild. The CVSS score is 4. 6, reflecting limited confidentiality and integrity impact without availability impact.
AI Analysis
Technical Summary
HCL Connections 8.0 contains a broken access control vulnerability (CWE-863) that could permit an unauthorized user with some privileges to update data in scenarios where proper authorization checks are not enforced. The vulnerability has a CVSS 3.1 base score of 4.6, indicating a network attack vector with low complexity, requiring privileges and user interaction, and resulting in limited confidentiality and integrity impact. No official remediation or patch information is currently available, and the product is not a cloud service, so remediation depends on vendor updates.
Potential Impact
An attacker with some level of privileges and user interaction could exploit this vulnerability to update data they should not be authorized to modify. The impact is limited to partial confidentiality and integrity loss without affecting availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, review and restrict user privileges to minimize the risk of unauthorized data modification. Monitor vendor communications for updates on official patches or mitigations.
CVE-2026-21789: CWE-863 Incorrect Authorization in HCLSoftware Connections
Description
CVE-2026-21789 is a medium severity vulnerability in HCL Connections version 8. 0 involving broken access control. This flaw may allow an unauthorized user with limited privileges to update certain data under specific conditions. The vulnerability does not appear to have an official patch or remediation guidance published yet, and no known exploits are reported in the wild. The CVSS score is 4. 6, reflecting limited confidentiality and integrity impact without availability impact.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
HCL Connections 8.0 contains a broken access control vulnerability (CWE-863) that could permit an unauthorized user with some privileges to update data in scenarios where proper authorization checks are not enforced. The vulnerability has a CVSS 3.1 base score of 4.6, indicating a network attack vector with low complexity, requiring privileges and user interaction, and resulting in limited confidentiality and integrity impact. No official remediation or patch information is currently available, and the product is not a cloud service, so remediation depends on vendor updates.
Potential Impact
An attacker with some level of privileges and user interaction could exploit this vulnerability to update data they should not be authorized to modify. The impact is limited to partial confidentiality and integrity loss without affecting availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, review and restrict user privileges to minimize the risk of unauthorized data modification. Monitor vendor communications for updates on official patches or mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- HCL
- Date Reserved
- 2026-01-05T16:08:02.277Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a0b6a47ec166c07b0ea2088
Added to database: 5/18/2026, 7:36:39 PM
Last enriched: 5/18/2026, 7:51:52 PM
Last updated: 5/18/2026, 8:43:29 PM
Views: 3
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