CVE-2026-77090
CVFS Information Disclosure
CVFS contained an XML external entity (XXE) reference handling issue affecting information dislcosure. Software customers upgrade to resolved maintenance release. Update CVFS.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
CVFS Information Disclosure
CVFS contained an XML external entity (XXE) reference handling issue affecting information dislcosure. Software customers upgrade to resolved maintenance release. Update CVFS.
- Record
CVE-2026-77090- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-611
- Updated
- 2026-11-02
EUVDEUVD-2026-98756
CVFS contained an XML external entity (XXE) reference handling issue affecting information dislcosure. Software customers upgrade to resolved maintenance release. Update CVFS.
- Record
EUVD-2026-98756- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-g9jj-cpxw-62v5
CVFS contained an XML external entity (XXE) reference handling issue affecting information...
CVFS contained an XML external entity (XXE) reference handling issue affecting information dislcosure. Software customers upgrade to resolved maintenance release. Update CVFS.
- Record
GHSA-g9jj-cpxw-62v5- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-611
- Updated
- 2026-11-02
NVD
CVFS contained an XML external entity (XXE) reference handling issue affecting information dislcosure. Software customers upgrade to resolved maintenance release. Update CVFS.
- Record
CVE-2026-77090- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-611
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-77090 is a high vulnerability (CVSS 8.7) in Commvault Cloud, published October 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.33%, the 26th percentile. No source names a fixed version.