CVE-2026-118746
MEDIUMCVSS 6.8/10
Last modified
CVE-2026-118746 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. Not failing securely ('failing open') in .NET allows an unauthorized attacker to bypass a security feature over a network..
Description
Not failing securely ('failing open') in .NET allows an unauthorized attacker to bypass a security feature over a network.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | .NET 11.0 installed on Linux | >= 11.0.0-preview.1, < 11.0.0 |
| Microsoft | .NET 11.0 installed on Mac OS | >= 11.0.0-preview.1, < 11.0.0 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-118746?
Not failing securely ('failing open') in .NET allows an unauthorized attacker to bypass a security feature over a network.
How severe is CVE-2026-118746?
CVE-2026-118746 has a CVSS score of 6.8/10 (MEDIUM severity).
How do I fix CVE-2026-118746?
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.
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Are you affected by CVE-2026-118746?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST