VDB
CVE-2026-61398
CVE-2026-61398
PUBLISHED
CVSS 9.1 CRITICAL
Reported by apache · Published August 21, 2026
Improper Encoding or Escaping of Output vulnerability in Apache CloudStack's UI while using Instance Reset Password functionality. This issue affects Apache CloudStack: from 4.15.1.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0. Users are recommended to upgrade to version 4.20.3.1 or 4.22.1.1 or later, which fixes the issue.
Risk Scores
CVSS 3.1
9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache CloudStack | 4.15.1.0, 4.21.0.0 |
| Apache Software Foundation | Apache CloudStack | 4.15.1.0, 4.21.0.0, 4.15.1.0 |
Timeline
- Aug 21, 2026 EPSS Score
- Aug 21, 2026 CVE Published
- Aug 22, 2026 Coalition ESS Score
- Aug 24, 2026 EPSS Score
- Aug 26, 2026 EPSS Score
- Aug 27, 2026 EPSS Score
- Aug 27, 2026 CVE Updated