CVE-2026-11824
SQLite before 3.53.2 Heap Buffer Overflow via FTS5 fts5ChunkIterate
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-122 |
| Vendor | sqlite |
| Product | sqlite |
| Published | Jun 9, 2026 |
| Last Updated | Jun 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
SQLite / SQLite
0 < 3.53.2
References
Credits
Ashish Kunwar (@D0rkerDevil)