Vulnerability · Published Oct 30, 2026 · Assigned by VulnCheck

CVE-2026-119591SQLite before 3.54.0 Stack Exhaustion via countOfViewOptimization() in VALUES Clause

Medium 5.5

In plain English

A medium-severity security flaw in SQLite from SQLite. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium

Exploit odds (30 days)0.2%top 93.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

SQLite before 3.54.0 contains a stack exhaustion vulnerability in countOfViewOptimization() that allows attackers to crash the host process via count(*) over a large multi-row VALUES clause. Attackers supplying SQL or a database file with a crafted view can trigger deeply nested TK_PLUS expressions whose recursive freeing in sqlite3ExprDeleteNN() exhausts the C stack, causing denial of service.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	sqlite3	no fix listed	DEBIAN-CVE-2026-119591
Debian:13	sqlite3	no fix listed	DEBIAN-CVE-2026-119591
Debian:14	sqlite3	no fix listed	DEBIAN-CVE-2026-119591
Ubuntu:22.04:LTS	sqlite	no fix listed	UBUNTU-CVE-2026-119591
Ubuntu:22.04:LTS	sqlite3	no fix listed	UBUNTU-CVE-2026-119591
Ubuntu:24.04:LTS	sqlite3	no fix listed	UBUNTU-CVE-2026-119591
Ubuntu:26.04:LTS	sqlite3	no fix listed	UBUNTU-CVE-2026-119591
Ubuntu:26.10	sqlite3	no fix listed	UBUNTU-CVE-2026-119591

Affected products (as reported)

Vendor	Product	Versions
SQLite	SQLite	0 – before 3.54.0

Weakness: CWE-674 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

https://sqlite.org/bugs/info/2026-10-04T05:34:47Z issue-tracking
https://sqlite.org/src/info/ab621a3e11ee4acc patch
https://github.com/sqlite/sqlite/commit/eff50a067c55f972909e7780e506e91382d08de2 patch
https://github.com/sqlite/sqlite/blob/version-3.53.4/src/select.c#L7199 technical-description
https://sqlite.org/releaselog/3_54_0.html release-notes
https://abraxaslabs.tech/research/sqlite-values-union third-party-advisory
https://github.com/sqlite/sqlite product
VulnCheck Advisory: SQLite before 3.54.0 Stack Exhaustion via countOfViewOptimization() in VALUES Clause third-party-advisory