Vulnerability Details CVE-2026-61398
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 23.9%
CVSS Severity
CVSS v3 Score 9.1
Products affected by CVE-2026-61398
-
cpe:2.3:a:apache:cloudstack:4.15.1.0
-
cpe:2.3:a:apache:cloudstack:4.15.2.0
-
cpe:2.3:a:apache:cloudstack:4.16.0.0
-
cpe:2.3:a:apache:cloudstack:4.16.1.0
-
cpe:2.3:a:apache:cloudstack:4.16.1.1
-
cpe:2.3:a:apache:cloudstack:4.17.0.0
-
cpe:2.3:a:apache:cloudstack:4.17.0.1
-
cpe:2.3:a:apache:cloudstack:4.17.2.0
-
cpe:2.3:a:apache:cloudstack:4.18.0.0
-
cpe:2.3:a:apache:cloudstack:4.18.1.0
-
cpe:2.3:a:apache:cloudstack:4.18.1.1
-
cpe:2.3:a:apache:cloudstack:4.18.2.0
-
cpe:2.3:a:apache:cloudstack:4.18.2.1
-
cpe:2.3:a:apache:cloudstack:4.18.2.2
-
cpe:2.3:a:apache:cloudstack:4.18.2.3
-
cpe:2.3:a:apache:cloudstack:4.18.2.4
-
cpe:2.3:a:apache:cloudstack:4.18.2.5
-
cpe:2.3:a:apache:cloudstack:4.19.0.0
-
cpe:2.3:a:apache:cloudstack:4.19.0.1
-
cpe:2.3:a:apache:cloudstack:4.19.0.2
-
cpe:2.3:a:apache:cloudstack:4.19.1.0
-
cpe:2.3:a:apache:cloudstack:4.19.1.1
-
cpe:2.3:a:apache:cloudstack:4.19.1.2
-
cpe:2.3:a:apache:cloudstack:4.19.1.3
-
cpe:2.3:a:apache:cloudstack:4.19.2.0
-
cpe:2.3:a:apache:cloudstack:4.19.3.0
-
cpe:2.3:a:apache:cloudstack:4.20.0.0
-
cpe:2.3:a:apache:cloudstack:4.20.1.0
-
cpe:2.3:a:apache:cloudstack:4.20.2.0
-
cpe:2.3:a:apache:cloudstack:4.20.3.0
-
cpe:2.3:a:apache:cloudstack:4.21.0.0
-
cpe:2.3:a:apache:cloudstack:4.22.0.0
-
cpe:2.3:a:apache:cloudstack:4.22.0.1
-
cpe:2.3:a:apache:cloudstack:4.22.1.0