CVE-2026-107823
Description
A flaw was found in MariaDB. An authenticated user with permissions to create users and views can escalate database privileges by creating an account with a crafted username containing embedded newline characters. Due to improper encoding in the view format parser, the injected input is interpreted as security metadata, granting the user unauthorized elevated permissions.
Statement
This vulnerability is classified as having an Important severity because successful exploitation enables an authenticated database account to escalate to full administrative access across the database instance, although it requires holding significant existing privileges. In standard Red Hat Enterprise Linux deployments, non-administrative database users are not granted user creation or view delegation privileges by default. The primary risk occurs in shared or multi-tenant database environments where delegated user administration is enabled, allowing a privileged user to cross privilege boundaries.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
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 | 7.2 | N/A | 7.2 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | High | N/A | High |
| User Interaction | None | N/A | None |
| 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:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Integrity
Technical Impact: Modify Application Data
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