Aug 2026: .NET Information Disclosure Vulnerability
CVE-2026-62902 Published on August 11, 2026
.NET Information Disclosure Vulnerability
Inclusion of functionality from untrusted control sphere in .NET allows an unauthorized attacker to disclose information over a network.
Weakness Types
Inclusion of Functionality from Untrusted Control Sphere
The software imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.
Protection Mechanism Failure
The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product. This weakness covers three distinct situations. A "missing" protection mechanism occurs when the application does not define any mechanism against a certain class of attack. An "insufficient" protection mechanism might provide some defenses - for example, against the most common attacks - but it does not protect against everything that is intended. Finally, an "ignored" mechanism occurs when a mechanism is available and in active use within the product, but the developer has not applied it in some code path.
What is a SSRF Vulnerability?
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. By providing URLs to unexpected hosts or ports, attackers can make it appear that the server is sending the request, possibly bypassing access controls such as firewalls that prevent the attackers from accessing the URLs directly. The server can be used as a proxy to conduct port scanning of hosts in internal networks, use other URLs such as that can access documents on the system (using file://), or use other protocols such as gopher:// or tftp://, which may provide greater control over the contents of requests.
CVE-2026-62902 has been classified to as a SSRF vulnerability or weakness.
Products Associated with CVE-2026-62902
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Affected Versions
Microsoft .NET 10.0:- Version 10.0.0 and below 10.0.11 is affected.
- Version 8.0.0 and below 8.0.30 is affected.
- Version 9.0.0 and below 9.0.19 is affected.
- Version 17.14.0 and below 17.14.38 is affected.
- Version 18.0 and below 18.8.3 is affected.