High severity · published Aug 24, 2026
CVE-2026-21756
HCL Hive is affected by a broken access control vulnerability
7.2
CVSS
0.5%
EPSS
No
On KEV
Description
HCL Hive is affected by a broken access control vulnerability which could allow an attacker or unauthorized user to introduce unverified, malicious, or broken code directly into production environments.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HH
HCL Hive · HCLSoftware
1.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-21756
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-21756
support.hcl-software.com
https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0131731
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