CVE-2026-51300 | A use-after-free vulnerability exists in the expression pars… | CVSS 9.1 CRITICAL

Description

A use-after-free vulnerability exists in the expression parsing and memory management logic of SQLite 3.41. After invoking sqlite3ExprDelete to release an expression object, the program still retains the dangling pointer and subsequently accesses member fields of the already freed memory. By constructing malicious SQL queries, a remote attacker can trigger invalid memory access, leading to application crash and sensitive memory information leakage.

Metadata

CVE ID: CVE-2026-51300
State: PUBLISHED
Assigner: mitre
Reserved: 2026-06-07 00:00 UTC
Published: 2026-07-27 00:00 UTC
Last updated: 2026-07-28 13:38 UTC
Primary CWE: CWE-416
CWE-416 Use After Free
Vendor / Product: n/a / n/a
Sources: cve.org · NVD

Severity & Metrics

9.1 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
n/a	n/a	—	n/a

Weakness (CWE)

CWE	Source	Description
—	cna	n/a
CWE-416	adp	CWE-416 Use After Free

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.1	CRITICAL	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References (2)