Bug 2548802 (CVE-2026-96222) - CVE-2026-96222 dotnet8.0: Active Directory Federation Services (AD FS) Spoofing Vulnerability
Summary: CVE-2026-96222 dotnet8.0: Active Directory Federation Services (AD FS) Spoofi...
Keywords:
Status: NEW
Alias: CVE-2026-96222
Deadline: 2026-10-13
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2553823
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-09 19:42 UTC by Charles Timko
Modified: 2026-10-20 22:46 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:86168 0 None None None 2026-10-20 21:36:30 UTC
Red Hat Product Errata RHSA-2026:86169 0 None None None 2026-10-20 22:46:22 UTC

Description Charles Timko 2026-10-09 19:42:20 UTC 
Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.

Affected packages:
- System.Security.Cryptography.Xml (release 8.0): 8.0.0 - 8.0.4; fixed 8.0.5
Comment 1 Jon Orris 2026-10-20 21:36:29 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:86168 https://access.redhat.com/errata/RHSA-2026:86168
Comment 2 Jon Orris 2026-10-20 22:46:21 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:86169 https://access.redhat.com/errata/RHSA-2026:86169
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