---
id: CVE-2026-101780
title: 'mysql: mysql: Denial of Service via X Plugin (CVE-2026-101780)'
summary: >-
  A flaw was found in the MySQL Server X Plugin component. An authenticated
  remote attacker with low privileges and network access can exploit this
  vulnerability through network protocol requests. Successful exploitation
  allows the attacker …
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe: CWE-617
vendor: Red Hat
product: Red Hat Enterprise Linux 10
affected:
  - enterprise_linux 10
  - enterprise_linux 9
published: '2026-10-20'
updated: '2026-10-22'
sourceUpdated: '2026-10-22T22:19:46+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101780.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101780.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-101780'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2557717'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-101780'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-101780'
  - url: 'https://www.oracle.com/security-alerts/cpuoct2026.html'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00353
epssPercentile: 0.28743
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-22T17:02:14.854689Z'
ingestedAt: '2026-10-20T22:23:33.923Z'
---

## Overview

A flaw was found in the MySQL Server X Plugin component. An authenticated remote attacker with low privileges and network access can exploit this vulnerability through network protocol requests. Successful exploitation allows the attacker to cause the database server to hang or repeatedly crash, leading to a complete Denial of Service (DoS).

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · updated 2026-10-22 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101780.json)

**mysql: mysql: Denial of Service via X Plugin** — rated Moderate by Red Hat. Released 2026-10-20, updated 2026-10-22.

Affected:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 9

No fix planned:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 9

Not affected:

- Red Hat Enterprise Linux 6
- Red Hat Hardened Images

## Remediation

Affected