CVE-2026-11822
SQLite before 3.53.2 Out-of-Bounds Read in FTS5 fts5LeafSeek
Description
SQLite before 3.53.2 contains an out-of-bounds read vulnerability in the FTS5 full-text search extension that allows attackers to crash the process by supplying a crafted database with a malformed FTS5 leaf page. Attackers can set an oversized term length in the leaf page so that fts5LeafSeek() reads past the end of the page buffer while comparing terms during an FTS5 MATCH query, in applications compiled with SQLITE_ENABLE_FTS5.
INFO
Published Date :
June 9, 2026, 8:16 p.m.
Last Modified :
Oct. 30, 2026, 2:17 a.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update SQLite to a patched version.
- Avoid processing untrusted FTS5 databases.
- Validate all input data for FTS5.
Public PoC/Exploit Available at Github
CVE-2026-11822 has a 4 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-11822.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-11822 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-11822
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
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None
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None
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-11822 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-11822 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by [email protected]
Oct. 30, 2026
Action Type Old Value New Value Changed Description SQLite before 3.53.2 contains memory corruption vulnerabilities in the FTS5 full-text search extension that allow attackers to cause process crashes, memory exhaustion, or arbitrary code execution by supplying a crafted database with malformed FTS5 page data. Attackers can trigger an out-of-bounds read in fts5LeafSeek() via an attacker-controlled loop bound and a heap buffer overflow write in fts5ChunkIterate() through a crafted continuation page causing an integer underflow, exploitable when an FTS5 MATCH query is executed against the malicious database. SQLite before 3.53.2 contains an out-of-bounds read vulnerability in the FTS5 full-text search extension that allows attackers to crash the process by supplying a crafted database with a malformed FTS5 leaf page. Attackers can set an oversized term length in the leaf page so that fts5LeafSeek() reads past the end of the page buffer while comparing terms during an FTS5 MATCH query, in applications compiled with SQLITE_ENABLE_FTS5. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Removed CVSS V4.0 AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Removed CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-125 Removed CWE CWE-122 Added Reference https://sqlite.org/src/info/87b653731171 Added Reference https://sqlite.org/src/info/fad98805b7d7 Removed Reference https://sqlite.org/src/info/061febcf41ca Removed Reference https://sqlite.org/src/info/4a5ad516ea93 Removed Reference Type https://sqlite.org/src/info/061febcf41ca Types: Issue Tracking, Patch Removed Reference Type https://sqlite.org/src/info/4a5ad516ea93 Types: Issue Tracking, Patch -
CVE Modified by [email protected]
Oct. 15, 2026
Action Type Old Value New Value Added Reference https://sqlite.org/releaselog/3_53_2.html Added Reference https://sqlite.org/src/info/061febcf41ca Added Reference https://sqlite.org/src/info/4a5ad516ea93 Added Reference https://www.vulncheck.com/advisories/sqlite-before-memory-corruption-in-fts5-extension Removed Reference https://sqlite.org/releaselog/3_53_2.html Removed Reference https://sqlite.org/src/info/061febcf41ca Removed Reference https://sqlite.org/src/info/4a5ad516ea93 Removed Reference https://www.vulncheck.com/advisories/sqlite-before-memory-corruption-in-fts5-extension Removed Reference Type https://sqlite.org/releaselog/3_53_2.html Types: Release Notes Removed Reference Type https://sqlite.org/src/info/061febcf41ca Types: Issue Tracking, Patch Removed Reference Type https://sqlite.org/src/info/4a5ad516ea93 Types: Issue Tracking, Patch Removed Reference Type https://www.vulncheck.com/advisories/sqlite-before-memory-corruption-in-fts5-extension Types: Third Party Advisory -
CVE Modified by 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Oct. 15, 2026
Action Type Old Value New Value Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/11xxx/CVE-2026-11822.json">CVE-2026-11822</a> Added Reference https://cert-portal.siemens.com/productcert/html/ssa-765416.html -
CVE Translated by [email protected]
Jul. 23, 2026
Action Type Old Value New Value Added Translation Title: SQLite, Description: SQLite anterior a 3.53.2 contiene vulnerabilidades de corrupción de memoria en la extensión de búsqueda de texto completo FTS5 que permiten a los atacantes causar caídas de proceso, agotamiento de memoria o ejecución de código arbitrario al proporcionar una base de datos manipulada con datos de página FTS5 malformados. Los atacantes pueden desencadenar una lectura fuera de límites en fts5LeafSeek() a través de un límite de bucle controlado por el atacante y una escritura de desbordamiento de búfer de pila en fts5ChunkIterate() a través de una página de continuación manipulada que causa un desbordamiento negativo de enteros, explotable cuando se ejecuta una consulta FTS5 MATCH contra la base de datos maliciosa. -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-11822', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-06-09T20:01:49.623614Z'} -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'SQLite', 'product': 'SQLite', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '3.53.2', 'versionType': 'custom'}], 'platforms': ['All platforms where SQLITE_ENABLE_FTS5 is defined'], 'collectionURL': 'https://sqlite.org/', 'defaultStatus': 'unaffected'}] -
Initial Analysis by [email protected]
Jun. 11, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:sqlite:sqlite:*:*:*:*:*:*:*:* versions up to (excluding) 3.53.2 Added Reference Type VulnCheck: https://sqlite.org/releaselog/3_53_2.html Types: Release Notes Added Reference Type VulnCheck: https://sqlite.org/src/info/061febcf41ca Types: Issue Tracking, Patch Added Reference Type VulnCheck: https://sqlite.org/src/info/4a5ad516ea93 Types: Issue Tracking, Patch Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/sqlite-before-memory-corruption-in-fts5-extension Types: Third Party Advisory -
New CVE Received by [email protected]
Jun. 09, 2026
Action Type Old Value New Value Added Description SQLite before 3.53.2 contains memory corruption vulnerabilities in the FTS5 full-text search extension that allow attackers to cause process crashes, memory exhaustion, or arbitrary code execution by supplying a crafted database with malformed FTS5 page data. Attackers can trigger an out-of-bounds read in fts5LeafSeek() via an attacker-controlled loop bound and a heap buffer overflow write in fts5ChunkIterate() through a crafted continuation page causing an integer underflow, exploitable when an FTS5 MATCH query is executed against the malicious database. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-122 Added Reference https://sqlite.org/releaselog/3_53_2.html Added Reference https://sqlite.org/src/info/061febcf41ca Added Reference https://sqlite.org/src/info/4a5ad516ea93 Added Reference https://www.vulncheck.com/advisories/sqlite-before-memory-corruption-in-fts5-extension