CVE-2026-11824

High

Description

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.

SeverityHigh

CVSS7.8

Exploit probability—

Product

Sqlite

PublishedJun 9, 2026

First seenJun 9, 2026

Weakness typeCWE-122CWE-122

How to fix

Update

sqlite sqlite3.53.2 or later

Patches

Vendor advisories

sqlite.org/releaselog/3_53_2.html

Affected products

Product	Affected versions	Fixed in
sqlite sqlite	v < 3.53.2	3.53.2

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