Bug 2548805 (CVE-2026-96231) - CVE-2026-96231 dotnet: dotnet9.0: dotnet10.0: dotnet8.0: .NET Elevation of Privilege Vulnerability
Summary: CVE-2026-96231 dotnet: dotnet9.0: dotnet10.0: dotnet8.0: .NET Elevation of Pr...
Keywords:
Status: NEW
Alias: CVE-2026-96231
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: 2555782 2555783 2555784
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-09 19:47 UTC by Charles Timko
Modified: 2026-10-21 03:42 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 21:36:33 UTC
Red Hat Product Errata RHSA-2026:86169 0 None None None 2026-10-20 22:46:26 UTC
Red Hat Product Errata RHSA-2026:86170 0 None None None 2026-10-20 21:55:05 UTC
Red Hat Product Errata RHSA-2026:86171 0 None None None 2026-10-20 22:50:05 UTC
Red Hat Product Errata RHSA-2026:86172 0 None None None 2026-10-20 21:43:22 UTC
Red Hat Product Errata RHSA-2026:86192 0 None None None 2026-10-20 21:58:39 UTC
Red Hat Product Errata RHSA-2026:86193 0 None None None 2026-10-20 22:55:50 UTC
Red Hat Product Errata RHSA-2026:86195 0 None None None 2026-10-20 21:40:43 UTC
Red Hat Product Errata RHSA-2026:86594 0 None None None 2026-10-21 03:42:16 UTC

Description Charles Timko 2026-10-09 19:47:26 UTC 
Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.

Affected products:
- .NET Runtime Libraries (release 11.0): 11.0.0-preview.1 - 11.0.0-rc.1; fixed 11.0.0-rc.2
- .NET Runtime Libraries (release 9.0): 9.0.0 - 9.0.20; fixed 9.0.21
- .NET Runtime Libraries (release 10.0): 10.0.0 - 10.0.12; fixed 10.0.13
- .NET Runtime Libraries (release 8.0): 8.0.0 - 8.0.31; fixed 8.0.32
Comment 1 Jon Orris 2026-10-20 21:36:32 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 21:40:43 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:86195 https://access.redhat.com/errata/RHSA-2026:86195
Comment 3 Jon Orris 2026-10-20 21:43:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:86172 https://access.redhat.com/errata/RHSA-2026:86172
Comment 4 Jon Orris 2026-10-20 21:55:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:86170 https://access.redhat.com/errata/RHSA-2026:86170
Comment 5 Jon Orris 2026-10-20 21:58:37 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:86192 https://access.redhat.com/errata/RHSA-2026:86192
Comment 6 Jon Orris 2026-10-20 22:46:24 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
Comment 7 Jon Orris 2026-10-20 22:50:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:86171 https://access.redhat.com/errata/RHSA-2026:86171
Comment 8 Jon Orris 2026-10-20 22:55:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:86193 https://access.redhat.com/errata/RHSA-2026:86193
Comment 9 Jon Orris 2026-10-21 03:42:15 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:86594 https://access.redhat.com/errata/RHSA-2026:86594
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