---
id: CVE-2026-119374
title: SQLite before 3.54.0 Heap Buffer Overflow via FTS5 fts5DoSecureDelete()
summary: >-
  SQLite before 3.54.0 built with FTS5 contains a heap buffer overflow in
  fts5DoSecureDelete() that allows attackers to write past the leaf page buffer
  via crafted footer key offsets. Attackers can supply a database file with a
  corrupted F…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-787
vendor: SQLite
product: SQLite
affected:
  - SQLite < 3.54.0
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-30T15:34:49.257415Z'
published: '2026-10-30'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T15:56:39.115Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-119374'
references:
  - url: 'https://sqlite.org/src/info/9cd4f9e920'
  - url: >-
      https://github.com/sqlite/sqlite/commit/d9de6eedbe918c074c7556400fa21df5960704d9
  - url: >-
      https://github.com/sqlite/sqlite/blob/version-3.53.4/ext/fts5/fts5_index.c#L5525
  - url: 'https://sqlite.org/releaselog/3_54_0.html'
  - url: 'https://abraxaslabs.tech/research/sqlite-fts5-securedel'
  - url: 'https://github.com/sqlite/sqlite'
  - url: >-
      https://www.vulncheck.com/advisories/sqlite-before-3.54.0-heap-buffer-overflow-via-fts5-fts5dosecuredelete
    label: >-
      VulnCheck Advisory: SQLite before 3.54.0 Heap Buffer Overflow via FTS5
      fts5DoSecureDelete()
tags:
  - cve.org
epss: 0.0023
epssPercentile: 0.13921
ingestedAt: '2026-11-05T16:24:31.042Z'
---

## Overview

SQLite before 3.54.0 built with FTS5 contains a heap buffer overflow in fts5DoSecureDelete() that allows attackers to write past the leaf page buffer via crafted footer key offsets. Attackers can supply a database file with a corrupted FTS5 index that, when deleted from with secure-delete enabled, corrupts heap memory and crashes the application.

## Affected

- `SQLite < 3.54.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.