CVE-2026-59799

High

Description

Improper Privilege Management vulnerability in Apache CloudStack's Two-factor authentication plugin allowing bypass of the two-factor authentication disable flow. This issue affects Apache CloudStack: from 4.18.0.0 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.

SeverityHigh

CVSS8.8

Exploit probability—

Product

Apache Cloudstack

PublishedAug 21, 2026

First seenAug 21, 2026

Weakness typeCWE-269Improper privilege management

How to fix

Update

apache cloudstack4.20.3.1, 4.22.1.1 or later

Vendor advisories

lists.apache.org/thread/g6cwddtjrwbh1d56wjz4cfp3fzfm4kbc

Affected products

Product	Affected versions	Fixed in
apache cloudstack	4.18.0.0 ≤ v < 4.20.3.1, 4.21.0.0 ≤ v < 4.22.1.1	4.20.3.1, 4.22.1.1

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