CVE-2026-59655
Received Received - Intake

Exposure of Sensitive Information in Apache CloudStack OAuth Plugin

Publication date: 2026-08-21

Last updated on: 2026-08-21

Assigner: Apache Software Foundation

Description
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache CloudStack's OAuth authentication plugin while listing OAuth providers. This issue affects Apache CloudStack: from 4.19.0.0 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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-08-21
Last Modified
2026-08-21
Generated
2026-08-21
AI Q&A
2026-08-21
EPSS Evaluated
N/A
NVD
CVE-2026-59655
EUVD
EUVD-2026-63844

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
apache cloudstack From 4.19.0.0 (inc) to 4.20.3.0 (inc)
apache cloudstack From 4.21.0.0 (inc) to 4.22.1.0 (inc)
apache cloudstack 4.20.3.1
apache cloudstack 4.22.1.1

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability involves the exposure of sensitive information to unauthorized actors due to a flaw in Apache CloudStack's OAuth authentication plugin. Specifically, it occurs when listing OAuth providers, potentially allowing attackers to access confidential data.

Impact Analysis

If exploited, this vulnerability could lead to unauthorized access to sensitive information, compromising user data, authentication credentials, or other confidential details managed by Apache CloudStack.

Compliance Impact

This vulnerability may violate compliance requirements under GDPR, HIPAA, or other regulations by exposing sensitive personal or health data to unauthorized parties, potentially resulting in legal penalties or reputational damage.

Mitigation Strategies

Upgrade Apache CloudStack to version 4.20.3.1 or 4.22.1.1 or later to fix the OAuth authentication plugin vulnerability.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-59655. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart