---
id: "CVE-2026-119379"
kind: "vulnerability"
aliases: ["CVE-2026-119379"]
title: "SQLite: crafted changesets overflow heap memory in session extension apply"
severity: "high"
cvss: 8.5
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["c", "embedded-database", "package", "session-extension", "sqlite"]
not_affected_if: ["no-changeset-apply", "session-extension-disabled", "sqlite-3.54.0-or-later"]
published_at: "2026-10-30T12:16:36+00:00"
first_seen_at: "2026-10-30T12:30:23+00:00"
updated_at: "2026-10-30T12:32:08+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119379", "first_seen_at": "2026-10-30T12:30:23+00:00"}]
---

# SQLite: crafted changesets overflow heap memory in session extension apply

SQLite builds with the session extension before 3.54.0 have a heap buffer overflow in sqlite3changeset_apply(). A crafted changeset that repeats a table name with a larger column count makes sessionUpdateFind() write past an undersized buffer, corrupting heap memory.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the SQLite version with `sqlite3 --version`; anything below `3.54.0` is in range.
- Check whether the build defines `SQLITE_ENABLE_SESSION`, which the session extension requires.
- Check whether the application calls sqlite3changeset_apply() on changesets it does not fully trust.

## Fix

- SQLite: `3.54.0` or later

## Timeline

- 2026-10-30T12:30:23+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-119379

## From the sources

SQLite before 3.54.0 built with the session extension contains a heap buffer overflow vulnerability in sqlite3changeset_apply() that allows attackers to corrupt heap memory by supplying crafted changesets. Attackers can repeat a table name in a second changeset block with a larger column count, causing sessionUpdateFind() to memset past the undersized aUpdateMask allocation.

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