CVE-2026-18228 Hyperscale Path Traversal
An attacker can exploit a path traversal vulnerability in Commvault HyperScale to disclose sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-18228?
CVE-2026-18228 is a high-severity path traversal vulnerability in Commvault Cloud, published on 13 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
HyperScale contained a path traversal issue affecting information disclosure. Software customers upgrade to resolved maintenance release. Update Commvault installation of HyperScale MediaAgents.
Weakness: CWE-22
Which versions are affected by CVE-2026-18228?
How do I fix CVE-2026-18228?
No fix has been published for CVE-2026-18228 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-18228 being exploited?
There is no known exploitation of CVE-2026-18228 in the wild and no public exploit code.
Sources
Also known as GHSA-jxpj-8hjm-976g.