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CVE-2026-59085: CWE-918 Server-Side Request Forgery (SSRF) in Apache Software Foundation Apache CloudStack

0
Critical
VulnerabilityCVE-2026-59085cvecve-2026-59085cwe-918
Published: 08/21/2026 (08/21/2026, 08:28:51 UTC)
Source: CVE Database V5
Vendor/Project: Apache Software Foundation
Product: Apache CloudStack

Description

CVE-2026-59085 is a critical Server-Side Request Forgery (SSRF) vulnerability in the webhook module of Apache CloudStack. It affects versions from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0. The vulnerability allows unauthenticated attackers to send crafted webhook delivery requests that could lead to unauthorized information disclosure and impact confidentiality and integrity. The issue is fixed in versions 4.20.3.1 and 4.22.1.1 or later.

CVSS v3.1

Score 9.1critical

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected software

Apache Software Foundation

Apache CloudStack

Affected versions
>=4.20.0.0 <=4.20.3.0>=4.21.0.0 <=4.22.1.0
Mavenmore threats →ai
org.apache.cloudstack/cloudstack
pkg:maven/org.apache.cloudstack/cloudstack
Affected versions
=4.20.0.0>=4.20.0.0 <=4.20.3.0=4.21.0.0>=4.21.0.0 <=4.22.1.0

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/10/2026, 18:45:09 UTC

Technical Analysis

This vulnerability (CVE-2026-59085) in Apache CloudStack's webhook module is a Server-Side Request Forgery (SSRF) flaw. It allows an attacker to induce the server to make HTTP requests to arbitrary domains or internal systems by exploiting the webhook delivery request handling. The affected versions include 4.20.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0. The vendor has released fixed versions 4.20.3.1 and 4.22.1.1 to address this issue.

Potential Impact

Successful exploitation can lead to unauthorized access to internal resources or sensitive information by making the server perform unintended HTTP requests. The CVSS score of 9.1 indicates a critical impact with high confidentiality and integrity impact, no privileges required, and no user interaction needed.

Mitigation Recommendations

Users should upgrade Apache CloudStack to version 4.20.3.1 or 4.22.1.1 or later to remediate this vulnerability. These versions contain the official fix for the SSRF issue. No other mitigation steps are indicated in the vendor advisory.

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Technical Details

Data Version
5.2
Assigner Short Name
apache
Date Reserved
2026-07-02T11:35:56.933Z
State
PUBLISHED

Threat ID: 6a88309eacd9273b4907b861

Added to database: 08/21/2026, 11:03:58 UTC

Last enriched: 09/10/2026, 18:45:09 UTC

Last updated: 10/05/2026, 06:48:17 UTC

Views: 82

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