Medium severity · published Aug 24, 2026
CVE-2026-21755
HCL Hive is affected by a missing rate limit
5.3
CVSS
0.3%
EPSS
No
On KEV
Description
HCL Hive is affected by a missing rate limit which could allow an attacker unauthorized access via brute-force or credential stuffing attacks, or cause a denial of service.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% 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-2026-21755
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-21755
support.hcl-software.com
https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0131731
More from HCL Hive
7.5
CVE-2025-68825
HCL Hive is affected by incorrect default permissions
7.5
CVE-2026-21752
HCL Hive is affected by a use of vulnerable third-party components
7.4
CVE-2026-21751
HCL Hive is affected by use of a cryptographic primitive with a risky implementation
7.2
CVE-2026-21756
HCL Hive is affected by a broken access control vulnerability
5.3
CVE-2025-68833
HCL Hive is affected by use of a cryptographic primitive with a risky implementation