Improper Encoding or Escaping of Output vulnerability in Apache CloudStack's UI while using Lock User Functionality. (CVE-2026-61399)
An improper encoding or escaping of output vulnerability exists in Apache CloudStack's UI related to the Lock User functionality. This vulnerability affects versions from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0. The issue has been fixed in versions 4.20.3.1 and 4.22.1.1 or later. Users are advised to upgrade to these fixed versions to remediate the vulnerability.
AI Analysis
Technical Summary
CVE-2026-61399 describes an improper encoding or escaping of output vulnerability (CWE-116) in the Apache CloudStack UI when using the Lock User functionality. This vulnerability affects Apache CloudStack versions 4.20.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0. The flaw could allow improper handling of output data, potentially leading to security issues related to output encoding. The vendor has released fixed versions 4.20.3.1 and 4.22.1.1 that address this vulnerability.
Potential Impact
The vulnerability could allow attackers to exploit improper output encoding in the UI, which may lead to security issues such as cross-site scripting or other injection-related problems. However, no known exploits are reported in the wild at this time.
Mitigation Recommendations
Users should upgrade Apache CloudStack to version 4.20.3.1, 4.22.1.1, or later to remediate this vulnerability. No other mitigation steps are indicated by the vendor advisory.
Improper Encoding or Escaping of Output vulnerability in Apache CloudStack's UI while using Lock User Functionality. (CVE-2026-61399)
Description
An improper encoding or escaping of output vulnerability exists in Apache CloudStack's UI related to the Lock User functionality. This vulnerability affects versions from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0. The issue has been fixed in versions 4.20.3.1 and 4.22.1.1 or later. Users are advised to upgrade to these fixed versions to remediate the vulnerability.
Affected software
pkg:maven/org.apache.cloudstack/cloudstackRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-61399 describes an improper encoding or escaping of output vulnerability (CWE-116) in the Apache CloudStack UI when using the Lock User functionality. This vulnerability affects Apache CloudStack versions 4.20.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0. The flaw could allow improper handling of output data, potentially leading to security issues related to output encoding. The vendor has released fixed versions 4.20.3.1 and 4.22.1.1 that address this vulnerability.
Potential Impact
The vulnerability could allow attackers to exploit improper output encoding in the UI, which may lead to security issues such as cross-site scripting or other injection-related problems. However, no known exploits are reported in the wild at this time.
Mitigation Recommendations
Users should upgrade Apache CloudStack to version 4.20.3.1, 4.22.1.1, or later to remediate this vulnerability. No other mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-4rrq-73x5-wj26
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-61399"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a885f22acd9273b493f807f
Added to database: 08/21/2026, 14:22:26 UTC
Last enriched: 08/21/2026, 14:35:35 UTC
Last updated: 08/21/2026, 20:51:58 UTC
Views: 3
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