Vulnerability DatabaseCVE-2026-102870
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CVE-2026-102870
Published:October 13, 2026
Updated:October 14, 2026
Improper control of generation of code ('code injection') in ASP.NET Core allows an unauthorized attacker to execute code over a network.
Affected Packages
microsoft.aspnetcore.components.webassembly.server (NUGET):
Affected version(s) >=10.0.0 <10.0.13
Fix Suggestion:
Update to version 10.0.13
Related Resources (6)
https://github.com/dotnet/aspnetcore
https://github.com/dotnet/aspnetcore/discussions/69791
https://nvd.nist.gov/vuln/detail/CVE-2026-102870
https://github.com/dotnet/aspnetcore/security/advisories/GHSA-g27p-qf6j-c96c
https://github.com/dotnet/announcements/issues/445
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-102870
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Exploit Maturity
UNPROVEN
Weakness Type (CWE)
Improper Control of Generation of Code ('Code Injection')
CWE-94