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    <title>Most recent entries from all</title>
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    <lastBuildDate>Mon, 02 Nov 2026 17:53:29 +0000</lastBuildDate>
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      <title>CVE-2026-63346 — Refitter: C# source injection through OpenAPI header parameter names</title>
      <link>https://db.gcve.eu/vuln/cve-2026-63346</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; christianhelle refitter&lt;/p&gt;
&lt;p&gt;Refitter is a tool for generating a C# REST API client using the Refit library. Prior to 2.1.2, the header parameter name in `parameters[].name` with `in: header` is emitted verbatim into a Refit `[Header(&amp;#34;&amp;lt;name&amp;gt;&amp;#34;)]` attribute string without escaping quotation marks. An attacker-influenced OpenAPI description can pass default validation without `--skip-validation` and break out from the parameter-list position by closing the parameter and method syntax, attribute, interface, and namespace. The generated file can remain valid C# while containing a top-level file class with a `[ModuleInitializer]` method, which executes attacker code when the compiled assembly is loaded at application startup, even if the client is never called. Query `AliasAs` and enum/default value sinks are escaped; this flaw is in header-name attribute-string emission. The behavior was verified with Refitter 2.0.0 and .NET 8. This issue is fixed in version 2.1.2.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; christianhelle refitter&lt;/p&gt;
&lt;p&gt;Refitter is a tool for generating a C# REST API client using the Refit library. Prior to 2.1.2, the header parameter name in `parameters[].name` with `in: header` is emitted verbatim into a Refit `[Header(&amp;#34;&amp;lt;name&amp;gt;&amp;#34;)]` attribute string without escaping quotation marks. An attacker-influenced OpenAPI description can pass default validation without `--skip-validation` and break out from the parameter-list position by closing the parameter and method syntax, attribute, interface, and namespace. The generated file can remain valid C# while containing a top-level file class with a `[ModuleInitializer]` method, which executes attacker code when the compiled assembly is loaded at application startup, even if the client is never called. Query `AliasAs` and enum/default value sinks are escaped; this flaw is in header-name attribute-string emission. The behavior was verified with Refitter 2.0.0 and .NET 8. This issue is fixed in version 2.1.2.&lt;/p&gt;</content:encoded>
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