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      <title>CVE-2026-5223 — Crates in third party registries can override the cached source of other crates</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-5223</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Rust Project Cargo&lt;/p&gt;
&lt;p&gt;Cargo incorrectly handled symlinks inside of crate tarballs downloaded from third-party registries, allowing a malicious crate to override the source code of another crate from the same registry. The severity of the vulnerability is **medium** for users of third-party registries. Users of crates.io are **not affected**, as crates.io forbids uploading crates containing any symlink.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Rust Project Cargo&lt;/p&gt;
&lt;p&gt;Cargo incorrectly handled symlinks inside of crate tarballs downloaded from third-party registries, allowing a malicious crate to override the source code of another crate from the same registry. The severity of the vulnerability is **medium** for users of third-party registries. Users of crates.io are **not affected**, as crates.io forbids uploading crates containing any symlink.&lt;/p&gt;</content:encoded>
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