Bug 2487164 (CVE-2026-45491) - CVE-2026-45491 dotnet: .NET: Local file tampering via link following vulnerability
Summary: CVE-2026-45491 dotnet: .NET: Local file tampering via link following vulnerab...
Keywords:
Status: NEW
Alias: CVE-2026-45491
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2487589 2487590 2487591
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-09 18:05 UTC by OSIDB Bzimport
Modified: 2026-06-11 11:25 UTC (History)
2 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-2026:25110 0 None None None 2026-06-10 21:46:18 UTC
Red Hat Product Errata RHSA-2026:25111 0 None None None 2026-06-10 20:08:41 UTC
Red Hat Product Errata RHSA-2026:25112 0 None None None 2026-06-10 20:11:27 UTC
Red Hat Product Errata RHSA-2026:25113 0 None None None 2026-06-10 21:47:22 UTC
Red Hat Product Errata RHSA-2026:25114 0 None None None 2026-06-10 20:59:38 UTC
Red Hat Product Errata RHSA-2026:25115 0 None None None 2026-06-10 20:36:13 UTC
Red Hat Product Errata RHSA-2026:25220 0 None None None 2026-06-11 11:24:38 UTC
Red Hat Product Errata RHSA-2026:25221 0 None None None 2026-06-11 11:24:44 UTC
Red Hat Product Errata RHSA-2026:25222 0 None None None 2026-06-11 11:25:02 UTC

Description OSIDB Bzimport 2026-06-09 18:05:24 UTC 
Improper link resolution before file access ('link following') in .NET allows an unauthorized attacker to perform tampering locally.
Comment 2 errata-xmlrpc 2026-06-10 20:08:41 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:25111 https://access.redhat.com/errata/RHSA-2026:25111
Comment 3 errata-xmlrpc 2026-06-10 20:11:26 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:25112 https://access.redhat.com/errata/RHSA-2026:25112
Comment 4 errata-xmlrpc 2026-06-10 20:36:12 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:25115 https://access.redhat.com/errata/RHSA-2026:25115
Comment 5 errata-xmlrpc 2026-06-10 20:59:37 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:25114 https://access.redhat.com/errata/RHSA-2026:25114
Comment 6 errata-xmlrpc 2026-06-10 21:46:17 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:25110 https://access.redhat.com/errata/RHSA-2026:25110
Comment 7 errata-xmlrpc 2026-06-10 21:47:21 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:25113 https://access.redhat.com/errata/RHSA-2026:25113
Comment 8 errata-xmlrpc 2026-06-11 11:24:37 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:25220 https://access.redhat.com/errata/RHSA-2026:25220
Comment 9 errata-xmlrpc 2026-06-11 11:24:43 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:25221 https://access.redhat.com/errata/RHSA-2026:25221
Comment 10 errata-xmlrpc 2026-06-11 11:25:01 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:25222 https://access.redhat.com/errata/RHSA-2026:25222
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