CVE-2026-68745: Apache CloudStack certificate validation bypass in SAML authentication

CVE-2026-68745 · Severity: high · CVSS 8.1 · Published 2026-08-21

Apache CloudStack is an infrastructure-as-code platform used to manage virtual datacenters and cloud environments. A flaw in its SAML authentication mechanism fails to properly validate certificates, allowing an attacker with network access to forge authentication responses and impersonate any user—including administrators—without knowing their credentials. An attacker could gain unauthorized access to critical cloud infrastructure management capabilities.

Technologies: Apache Cloudstack. Vendors: Apache.

Quick answers

Is CVE-2026-68745 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-68745 being exploited in the wild.
How severe is CVE-2026-68745?
High severity, with a CVSS score of 8.1, published 21 August 2026.
Which products and versions are affected?
Apache Cloudstack 4.20.3.0, 4.22.1.0.
Is there a fix for CVE-2026-68745?
A patch was published on 2026-08-21: Fixed in versions 4.20.3.1 and 4.22.1.1 and above Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-68745 attacked?
It is attacked over the network.
Am I affected by CVE-2026-68745?
Check whether you run Apache Cloudstack at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a certificate validation failure in the SAML authentication implementation. An attacker can forge SAML responses to the management server by spoofing the IP address of the Identity Provider (IdP) or registering a malicious URL in the management server's configuration. The attack requires network positioning (spoofing or URL registration) and results in authentication bypass, allowing unauthorized login with forged signatures. The vulnerability affects CloudStack 4.20.3.0 and 4.22.1.0; patches are available in versions 4.20.3.1, 4.22.1.1, and above.

Affected products

  • Apache CloudStack 4.20.3.0, 4.22.1.0

Timeline

  • 2026-08-21: disclosed
  • 2026-08-21: patched: Fixed in versions 4.20.3.1 and 4.22.1.1 and above

References

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