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      <title>CVE-2025-0913 — Inconsistent handling of O_CREATE|O_EXCL on Unix and Windows in os in syscall</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2025-0913</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Go standard library syscall, Go standard library os&lt;/p&gt;
&lt;p&gt;os.OpenFile(path, os.O_CREATE|O_EXCL) behaved differently on Unix and Windows systems when the target path was a dangling symlink. On Unix systems, OpenFile with O_CREATE and O_EXCL flags never follows symlinks. On Windows, when the target path was a symlink to a nonexistent location, OpenFile would create a file in that location. OpenFile now always returns an error when the O_CREATE and O_EXCL flags are both set and the target path is a symlink.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Go standard library syscall, Go standard library os&lt;/p&gt;
&lt;p&gt;os.OpenFile(path, os.O_CREATE|O_EXCL) behaved differently on Unix and Windows systems when the target path was a dangling symlink. On Unix systems, OpenFile with O_CREATE and O_EXCL flags never follows symlinks. On Windows, when the target path was a symlink to a nonexistent location, OpenFile would create a file in that location. OpenFile now always returns an error when the O_CREATE and O_EXCL flags are both set and the target path is a symlink.&lt;/p&gt;</content:encoded>
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