CVE-2026-51290

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

30/07/2026

Last modified:

30/07/2026

Description

SQLite 3.41 has a use-after-free vulnerability in the shared cache lock management logic of the btree module. The program frees a BtLock structure without removing the node from the linked list. Subsequent linked list traversal accesses the released memory, which can lead to denial of service and sensitive memory information disclosure.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.10 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): High

Base Score 3.x

9.10

Severity 3.x

CRITICAL

References to Advisories, Solutions, and Tools

https://github.com/programmervuln/cveadvisory-/blob/main/CVE-2026-51290md
https://github.com/sqlite/sqlite/blob/master/src/btree.c