CVE-2026-102870
HIGHCVSS 8.8/10EPSS 0.91%
Last modified
CVE-2026-102870 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Improper control of generation of code ('code injection') in ASP.NET Core allows an unauthorized attacker to execute code over a network.. EPSS estimates a 0.91% chance of exploitation in the next 30 days.
Description
Improper control of generation of code ('code injection') in ASP.NET Core allows an unauthorized attacker to execute code over a network.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | .NET 10.0 installed on Linux | >= 10.0.0, < 10.0.403 |
| Microsoft | .NET 10.0 installed on Mac OS | >= 10.0.0, < 10.0.403 |
| Microsoft | .NET 10.0 installed on Windows | >= 10.0.0, < 10.0.403 |
| Microsoft | .NET 11.0 installed on Linux | >= 11.0.0-preview.1, < 11.0.100-rc.3 |
| Microsoft | .NET 11.0 installed on Mac OS | >= 11.0.0-preview.1, < 11.0.100-rc.3 |
| Microsoft | .NET 11.0 installed on Windows | >= 11.0.0-preview.1, < 11.0.100-rc.3 |
| Microsoft | Microsoft Visual Studio 2019 version 16.11 | >= 16.11.0, < 16.11.61 |
| Microsoft | Microsoft Visual Studio 2022 version 17.14 | >= 17.14.0, < 17.14.43 |
| Microsoft | Microsoft Visual Studio 2026 version 18.10 | >= 18.10.0, < 18.10.4 |
| Microsoft | Microsoft Visual Studio 2026 version 18.11 | >= 18.11.0, < 18.11.2 |
| Microsoft | Microsoft Visual Studio 2026 version 18.12 | >= 18.12.0, < 18.12 Insiders 3 |
| Microsoft | Microsoft.AspNetCore.Components.WebAssembly.DevServer | >= 11.0.0-preview.1, < 10.0.14 |
| Microsoft | Microsoft.AspNetCore.Components.WebAssembly.Server | >= 10.0.0, < 10.0.13 |
References
Timeline
- Published
- Last Modified
- Status
- Undergoing Analysis
Frequently Asked Questions
What is CVE-2026-102870?
Improper control of generation of code ('code injection') in ASP.NET Core allows an unauthorized attacker to execute code over a network.
How severe is CVE-2026-102870?
CVE-2026-102870 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.91% probability of exploitation in the next 30 days.
How do I fix CVE-2026-102870?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-102864Improper neutralization of input during web page generation …4.6
- CVE-2026-102865Incorrect authorization in Microsoft Office SharePoint allow…6.5
- CVE-2026-102866Improper verification of cryptographic signature in Microsof…8.1
- CVE-2026-102867Out-of-bounds read in Microsoft Office Word allows an unauth…6.5
- CVE-2026-102869Access of resource using incompatible type ('type confusion'…8.8
- CVE-2026-10287A vulnerability was determined in SourceCodester SEO Meta Ta…7.3
- CVE-2026-102874A vulnerability was identified in HKUDS AnyTool 0.1.0. Affec…7.3
- CVE-2026-102875VLC media player before 3.0.24 contains a path traversal vul…7.8
- CVE-2026-102876SurrealDB before 3.3.0 contains an authorization bypass in H…8.1
- CVE-2026-102877Fider before 0.38.0 contains a server-side request forgery v…4.4
- CVE-2026-102878mcp-chrome-bridge through 1.0.31 contains an origin validati…8.1
- CVE-2026-102879ClaraVerse through 0.3.1 contains server-side request forger…5
Are you affected by CVE-2026-102870?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST