CVE-2026-101802
Description
A flaw was found in the MySQL Server Parser component. An authenticated remote attacker with low privileges can exploit this vulnerability through network access using multiple protocols. A successful attack can cause the service to hang or repeatedly crash, resulting in a Denial of Service (DoS).
Statement
This vulnerability is evaluated as Moderate impact because successful exploitation requires an attacker to possess valid database credentials with network reachability, and the consequence is strictly limited to service availability rather than arbitrary code execution or data leakage. In typical Red Hat Enterprise Linux environments, database services are isolated within protected internal network segments and restricted to authorized client applications. An authenticated user submitting crafted SQL syntax to the server parser can trigger a daemon crash or unresponsive state. Because unauthorized data disclosure or modification is prevented and low-privileged access is a prerequisite, this flaw does not present a high-severity threat.
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).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 6.5 | N/A | 6.5 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | Low | N/A | Low |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | None |
| Integrity Impact | None | N/A | None |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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