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.
References
| Link | Resource |
|---|---|
| https://lists.apache.org/thread/n8mt5b7wkpysstb8w7rr9f02kc5cq2xm | Mailing List Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2026/05/09/6 |
Configurations
Configuration 1 (hide)
|
History
10 May 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 8.8 |
09 May 2026, 07:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
08 May 2026, 19:49
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Apache
Apache cloudstack |
|
| CPE | cpe:2.3:a:apache:cloudstack:*:*:*:*:*:*:*:* | |
| References | () https://lists.apache.org/thread/n8mt5b7wkpysstb8w7rr9f02kc5cq2xm - Mailing List, Vendor Advisory |
08 May 2026, 18:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 6.3 |
08 May 2026, 13:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-08 13:16
Updated : 2026-05-10 15:16
NVD link : CVE-2026-25077
Mitre link : CVE-2026-25077
CVE.ORG link : CVE-2026-25077
JSON object : View
Products Affected
apache
- cloudstack
CWE
CWE-94
Improper Control of Generation of Code ('Code Injection')