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High 8.1Published Aug 21, 2026

CVE-2026-68745Apache CloudStack: SAML2 Signature Validation Silently Skipped for Cert-less IdP

Updated under an hour ago ()

Does this affect you?

It affects Apache Software Foundation Apache CloudStack and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Certificate validation failures in SAML authentication in Apache CloudStack 4.20.3.0 and 4.22.1.0 on all platforms allow a malicious agent to forge a SAML response to the management server. The agent will have to spoof the ip address of the IdP or get an url of its own choosing registered in the management server, after which it can allow logging on with forged signatures. Users are recommended to upgrade to versions 4.20.3.1 or 4.22.1.1 and above, which fix this issue.

CVSS
8.1 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-347
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
apache
NVD analysis
Analyzed
Record last updated
Aug 24, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Apache Software Foundation Apache CloudStack
apache_software_foundation:apache_cloudstack (from the name)
from 4.5.2 through 4.20.3.0; from 4.21.0.0 through 4.22.1.0
CNA record
apache cloudstack
apache:cloudstack
from 4.5.2 before 4.20.3.1; 4.22.1.0
NVD

References

  • vendor-advisory, mailing-list

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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