CVE-2026-59085

Apache CloudStack: Server-Side Request Forgery (SSRF) vulnerability in webhook module

State: Published
Severity: 9.1 Critical
Published: Aug 21, 2026
Updated: Aug 25, 2026
Reserved: Jul 2, 2026

Description

Server-Side Request Forgery (SSRF) vulnerability in Apache CloudStack's webhook module, exploitable via webhook delivery requests.

This issue affects Apache CloudStack: from 4.20.0.0 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.

Scores

CVSS	Score	Vector	Source
3.1	9.1 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N	CISA-ADP

Weaknesses

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
Apache CloudStackApache Software Foundation	4.20.0.0 through 4.20.3.0Affected 4.21.0.0 through 4.22.1.0Affected

References

https://lists.apache.org/thread/g6cwddtjrwbh1d56wjz4cfp3fzfm4kbcvendor-advisory

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