Vulnerability · Published Aug 11, 2026 · Assigned by Commvault
CVE-2026-13738Improper Authorization Validation
Critical 9.2
In plain English
A critical-severity incorrect authorization in Commvault Cloud from Commvault. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).
Severity (CVSS 4.0)9.2Critical
Exploit odds (30 days)0.7%top 47.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
CommServe contained an authorization bypass vulnerability affecting a limited set of command execution operations. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including Commserve, Webserver, Command Center, Media Agents, Clients and HyperScale X.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Commvault | Commvault Cloud | 11.46.0 – through 11.46.911.44.0 – through 11.44.1011.40.0 – through 11.40.6211.36.0 – through 11.36.113 |
Weakness: CWE-863 · Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N