High severity · published Oct 13, 2026
CVE-2026-77090
CVFS Information Disclosure
8.7
CVSS
0.3%
EPSS
No
On KEV
Description
CVFS contained an XML external entity (XXE) reference handling issue affecting information dislcosure. Software customers upgrade to resolved maintenance release. Update CVFS.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% 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
GC
Grid(HSX) CVFS · Commvault
5.0.1.0 through 5.0.14.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-77090
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-77090
documentation.commvault.com
https://documentation.commvault.com/securityadvisories/CV_2026_07_4.html
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