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CVE details

CVE-2026-11824

SQLite before 3.53.2 contains a heap-based buffer overflow vulnerability in the FTS5 full-text search extension that allows attackers to cause a crash or execute arbitrary code by supplying a crafted database with malicious continuation page metadata specifying a szLeaf value smaller than 4. Attackers can trigger an integer underflow in fts5ChunkIterate() causing an inflated remaining byte count during FTS5 MATCH query processing, leading to a heap buffer overflow of attacker-controlled data in applications compiled with SQLITE_ENABLE_FTS5.

Score
8.5 high
Published
2026-06-09
Links
NVD · cve.org

Affected ports (3)

PortPackageVersionStatusMaintainer
databases/linux-c7-sqlite3linux-c7-sqlite3.7.17_2unaddressedemulation@FreeBSD.org
databases/sqlite2sqlite2.8.17_5unaddressedports@FreeBSD.org
databases/tcl-sqlite3tcl-sqlite33.50.4unaddressedpavelivolkov@gmail.com

Template for a VuXML entry

Range taken from the CVE record, check it before committing. make newentry in security/vuxml creates the vid.

  <vuln vid="FIXME (make newentry)">
    <topic>FIXME -- FIXME</topic>
    <affects>
      <package>
	<name>linux-c7-sqlite</name>
	<range><lt>3.53.2</lt></range>
      </package>
      <package>
	<name>sqlite</name>
	<range><lt>3.53.2</lt></range>
      </package>
      <package>
	<name>tcl-sqlite3</name>
	<range><lt>3.53.2</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>SQLite before 3.53.2 contains a heap-based buffer overflow
	vulnerability in the FTS5 full-text search extension that allows
	attackers to cause a crash or execute arbitrary code by supplying a
	crafted database with malicious continuation page metadata specifying
	a szLeaf value smaller than 4. Attackers can trigger an integer
	underflow in fts5ChunkIterate() causing an inflated remaining byte
	count during FTS5 MATCH query processing, leading to a heap buffer
	overflow of attacker-controlled data in applications compiled with
	SQLITE_ENABLE_FTS5.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2026-11824</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2026-11824</url>
    </references>
    <dates>
      <discovery>2026-06-09</discovery>
      <entry>2026-10-25</entry>
    </dates>
  </vuln>