CVE-2026-11824

HIGH

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 v3.1 Score

7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Published: 6/9/2026Modified: 10/15/2026

Related Intelligence (2)

CRITICALVulnerability

Siemens RUGGEDCOM CROSSBOW Station Access Controller

<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-295-15.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>RUGGEDCOM CROSSBOW Station Access Controller (SAC) contains multiple vulnerabilities in the integrated SQLite component that could allow an attacker to execute arbitrary code, cause a denial of service, or obtain sensitive information

CVE-2025-6965CVE-2025-70873
CISA Advisories
HIGHVulnerability

NVD HIGH: CVE-2026-11824 — SQLite before 3.53.2 contains a heap-based buffer overflow vulnerability in the ...

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 d

CVE-2026-11824
NIST NVD

References (5)

https://sqlite.org/releaselog/3_53_2.htmlRelease Noteshttps://sqlite.org/src/info/061febcf41caIssue TrackingPatchhttps://sqlite.org/src/info/4a5ad516ea93Issue TrackingPatchhttps://www.vulncheck.com/advisories/sqlite-before-heap-buffer-overflow-via-fts5-fts5chunkiterateThird Party Advisoryhttps://cert-portal.siemens.com/productcert/html/ssa-765416.html