Critical severity9.1NVD Advisory· Published Aug 21, 2026· Updated Aug 27, 2026
CVE-2026-59085
CVE-2026-59085
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.
Affected products
2from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0+ 1 more
- (no CPE)range: from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0
- (no CPE)range: from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0
Patches
Vulnerability mechanics
References
1- lists.apache.org/thread/g6cwddtjrwbh1d56wjz4cfp3fzfm4kbcnvdVendor AdvisoryMailing List
News mentions
1- Apache CloudStack & InLong: 25 Vulnerabilities Disclosed in Coordinated BatchVypr Intelligence · Aug 21, 2026