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      <title>CVE-2026-41256 — jq: Embedded NUL truncates top-level jq programs loaded with -f</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-41256</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; jqlang jq&lt;/p&gt;
&lt;p&gt;jq is a command-line JSON processor. In 1.8.1 and earlier, Top-level jq programs loaded from a file with -f are truncated at the first embedded NUL byte on current upstream HEAD. A crafted filter file such as . followed by \x00 and arbitrary suffix compiles and executes as only the prefix before the NUL. This leaves jq with a post-CVE-2026-33948 prefix/full-buffer mismatch on the compilation path even though the JSON parser path has already been fixed.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; jqlang jq&lt;/p&gt;
&lt;p&gt;jq is a command-line JSON processor. In 1.8.1 and earlier, Top-level jq programs loaded from a file with -f are truncated at the first embedded NUL byte on current upstream HEAD. A crafted filter file such as . followed by \x00 and arbitrary suffix compiles and executes as only the prefix before the NUL. This leaves jq with a post-CVE-2026-33948 prefix/full-buffer mismatch on the compilation path even though the JSON parser path has already been fixed.&lt;/p&gt;</content:encoded>
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