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High 8.8Published May 8, 2026

CVE-2026-25077Apache CloudStack: Unauthenticated Command Injection in Direct Download Templates

Updated under an hour ago ()

Does this affect you?

It affects Apache Software Foundation Apache CloudStack and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Account users are allowed by default to register templates to be downloaded directly to the primary storage for deploying instances using the KVM hypervisor. Due to missing file name sanitization, an attacker can register malicious templates to execute arbitrary code on the KVM hosts. This can result in the compromise of resource integrity and confidentiality, data loss, denial of service, and availability of the KVM-based infrastructure managed by CloudStack. Users are recommended to upgrade to Apache CloudStack versions 4.20.3.0 or 4.22.0.1, or later, which fixes this issue.

CVSS
8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-94
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
apache
NVD analysis
Modified
Record last updated
May 10, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Apache Software Foundation Apache CloudStack
apache_software_foundation:apache_cloudstack (from the name)
from 4.11.0 through 4.20.2.0; from 4.21.0.0 through 4.22.0.0
CNA record
apache cloudstack
apache:cloudstack
from 4.11.0.0 before 4.20.3.0; from 4.21.0.0 before 4.22.0.1
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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