CVE-2026-21755 HCL Hive is affected by a missing rate limit
Missing rate limits in HCL Hive allow attackers to perform brute-force or credential stuffing attacks, leading to unauthorized access or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-21755?
CVE-2026-21755 is a medium-severity missing authorization vulnerability in HCLSoftware HCL Hive, published on 24 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-307
Which versions are affected by CVE-2026-21755?
How do I fix CVE-2026-21755?
No fix has been published for CVE-2026-21755 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-21755 being exploited?
There is no known exploitation of CVE-2026-21755 in the wild and no public exploit code.
Sources
Also known as GHSA-g92m-84fg-5m4g.