CVE-2026-119373
Description
A flaw was found in SQLite. A heap-based buffer overflow exists in the Full-Text Search 5 (FTS5) extension during the merging of prefix document lists. An attacker capable of inserting negative row identifiers into a configured table and executing a prefix search query can cause data to be written beyond allocated memory. This issue can lead to memory corruption, resulting in application crashes, a Denial of Service (DoS), or potentially arbitrary code execution.
Statement
Red Hat has rated this vulnerability as having a security impact of Important because it can trigger heap memory corruption, potentially allowing arbitrary code execution within the context of the application utilizing the library. Exploitation requires specific preconditions, specifically an application using SQLite's Full-Text Search 5 module configured with suppressed detail storage that accepts negative row values and runs targeted search expressions. Applications that do not expose virtual full-text indexing or that restrict untrusted database inputs are not susceptible to this attack.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.8 | N/A | 7.8 |
| Attack Vector | Local | N/A | Local |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | Required | N/A | Required |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | High | N/A | High |
| Integrity Impact | High | N/A | High |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Integrity
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands
Write operations could cause memory corruption. In some cases, an adversary can modify control data such as return addresses in order to execute unexpected code.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
Attempting to access out-of-range, invalid, or unauthorized memory could cause the product to crash.
Other
Technical Impact: Unexpected State
Subsequent write operations can produce undefined or unexpected results.
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