High severity · published Oct 13, 2026
CVE-2026-97334
Network messaging layer decompression resource exhaustion
8.7
CVSS
0.4%
EPSS
No
On KEV
Description
The network messaging layer contained improper handling of highly compressed data affecting service availability. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including CommServe server, Web Server, Command Center, MediaAgents, clients, and HyperScale.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CC
Commvault Cloud · Commvault
11.46.0 through 11.46.29; 11.44.0 through 11.44.24; 11.40.0 through 11.40.77; 11.36.0 through 11.36.126 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-97334
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-97334
documentation.commvault.com
https://documentation.commvault.com/securityadvisories/CV_2026_10_3.html
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