Quick answers
- Is CVE-2026-13738 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-13738 being exploited in the wild.
- How severe is CVE-2026-13738?
- Critical severity, with a CVSS score of 9.8, published 11 August 2026.
- Which products and versions are affected?
- Commvault CommServe 11.36.0–11.36.113, 11.40.0–11.40.62, 11.44.0–11.44.10, 11.46.0–11.46.9.
- Is there a fix for CVE-2026-13738?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-13738 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-13738?
- Check whether you run Commvault CommServe at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is an improper authorization validation flaw in Commvault CommServe affecting a limited set of command execution operations. The authorization bypass allows attackers to bypass access controls on sensitive commands without requiring valid credentials or elevated privileges. This is a network-reachable vulnerability that does not require user interaction or prior authentication. An attacker can exploit this to execute arbitrary commands within the scope of the vulnerable operations, potentially compromising the confidentiality, integrity, and availability of backed-up data. Patches are available in resolved maintenance releases: versions 11.46.10, 11.44.11, 11.40.63, and 11.36.114 or higher.
Affected products
- Commvault CommServe 11.36.0–11.36.113, 11.40.0–11.40.62, 11.44.0–11.44.10, 11.46.0–11.46.9
Timeline
- 2026-08-11: disclosed