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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://sqlite.org/releaselog/3_53_2.html	Release Notes
https://sqlite.org/src/info/061febcf41ca	Issue Tracking Patch
https://sqlite.org/src/info/4a5ad516ea93	Issue Tracking Patch
https://www.vulncheck.com/advisories/sqlite-before-heap-buffer-overflow-via-fts5-fts5chunkiterate	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:sqlite:sqlite:*:*:*:*:*:*:*:*

History

11 Jun 2026, 17:12

Type	Values Removed	Values Added
First Time		Sqlite sqlite Sqlite
References	~~() https://sqlite.org/releaselog/3_53_2.html -~~	() https://sqlite.org/releaselog/3_53_2.html - Release Notes
References	~~() https://sqlite.org/src/info/061febcf41ca -~~	() https://sqlite.org/src/info/061febcf41ca - Issue Tracking, Patch
References	~~() https://sqlite.org/src/info/4a5ad516ea93 -~~	() https://sqlite.org/src/info/4a5ad516ea93 - Issue Tracking, Patch
References	~~() https://www.vulncheck.com/advisories/sqlite-before-heap-buffer-overflow-via-fts5-fts5chunkiterate -~~	() https://www.vulncheck.com/advisories/sqlite-before-heap-buffer-overflow-via-fts5-fts5chunkiterate - Third Party Advisory
CPE		cpe:2.3:a:sqlite:sqlite::::::::

09 Jun 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-09 20:16

Updated : 2026-06-11 17:12

NVD link : CVE-2026-11824

Mitre link : CVE-2026-11824

CVE.ORG link : CVE-2026-11824

JSON object : View

Products Affected

sqlite

sqlite

CWE

CWE-122

Heap-based Buffer Overflow

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