CVE-2026-50812
Published: July 11, 2026Last modified: July 21, 2026
Description
A NULL pointer dereference in the SQLite Session Extension in SQLite 3.53.1 and SQLite trunk builds before check-in e807d4e3798efd53 allows an attacker who can supply a malformed changeset blob to cause a denial of service. The issue occurs when sqlite3changeset_apply_v3() applies a corrupt changeset and reaches sqlite3_value_type() with a NULL sqlite3_value pointer.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | sqlite | Vulnerable (3.40.0-r0) |
| 25 LTS | sqlite | Vulnerable (3.49.2-r0) | |
| Stream | sqlite | Fixed (3.53.2-r0) | |
| Hardened Containers | 23 LTS | sqlite | Vulnerable (3.40.0-r0) |
| 25 LTS | sqlite | Vulnerable (3.49.2-r0) | |
| Stream | sqlite | Fixed (3.53.2-r0) |