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SQLite before 3.53.2 Heap Buffer Overflow via FTS5 fts5ChunkIterate

SQLite · CVE-2026-11824
0 news outlets0 CERTs and agencies0 researchers

What is it?

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.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
7.8
EPSS
0.2%
First seen
8 h ago
Status
corroborated

All SQLite vulnerabilities