Oct 2026: ASP.NET Core Elevation of Privilege Vulnerability
CVE-2026-70183 Published on October 13, 2026
ASP.NET Core Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in ASP.NET Core allows an authorized attacker to elevate privileges over a network.
Weakness Type
What is a Race Condition Vulnerability?
The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.
CVE-2026-70183 has been classified to as a Race Condition vulnerability or weakness.
Products Associated with CVE-2026-70183
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Affected Versions
Microsoft ASP.NET Core 10.0:- Version 10.0 and below 10.0.13 is affected.
- Version 11.0 and below 11.0.0-rc.2 is affected.
- Version 8.0 and below 8.0.32 is affected.
- Version 9.0 and below 9.0.21 is affected.
- Version 17.14.0 and below 17.14.42 is affected.
- Version 18.10.0 and below 18.10.4 is affected.