CVE-2026-101794
Description
A flaw was found in the XML component of MySQL. An authenticated, low-privileged remote attacker with network access can exploit this vulnerability to cause a Denial of Service (DoS). Successful attacks can result in a hang or frequently repeatable server crash, rendering the database unavailable.
Statement
This vulnerability is rated as having a Moderate impact because, while exploitation can trigger a complete denial of service by terminating or hanging the database instance, it strictly requires valid low-privileged credentials and cannot compromise data confidentiality or integrity. In typical Red Hat Enterprise Linux environments, MySQL database instances are deployed within secured private networks or bound exclusively to local interfaces, restricting potential exposure to trusted systems. Consequently, the blast radius is confined to service availability and is constrained to environments where untrusted users possess database login access.
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
Understanding the Weakness (CWE)
Confidentiality,Integrity,Availability
Technical Impact: Execute Unauthorized Code or Commands; Read Application Data; Modify Application Data
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