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CVE-2026-11824

SQLite before 3.53.2 Heap Buffer Overflow via FTS5 fts5ChunkIterate

Published: Jun 9, 2026Updated: Jun 11, 2026 Sources: CVE List NVDCWE-122
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.2%
Top 92.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-122

Affected Products

SQLiteSQLite
Embedded
Databases / relational
sqlitesqlite
Embedded
Databases / relational
sqliteoss-projectDatabasesaka sqlite

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://sqlite.org/src/info/061febcf41ca
sqlite.org
https://sqlite.org/src/info/4a5ad516ea93
sqlite.org
https://sqlite.org/releaselog/3_53_2.html
sqlite.org
and 1 more references View all →

Timeline

Published
Jun 9, 2026
Last Updated
Jun 11, 2026

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