---
id: CVE-2026-101775
title: >-
  mysql: mysql: unauthorized data modification via replication component
  (CVE-2026-101775)
summary: >-
  A flaw was found in the MySQL Server replication component. An unauthenticated
  remote attacker with network access could exploit this vulnerability to
  create, delete, or modify critical database data. A successful attack can also
  lead to a…
severity: high
cvss: 7.4
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H'
cvssSource: vendor
cwe: CWE-400
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: '2026-10-22T22:09:54+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101775.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101775.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-101775'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2557179'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-101775'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-101775'
  - url: 'https://www.oracle.com/security-alerts/cpuoct2026.html'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00325
epssPercentile: 0.25409
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-22T17:26:38.038650Z'
ingestedAt: '2026-10-20T22:23:33.924Z'
---

## Overview

A flaw was found in the MySQL Server replication component. An unauthenticated remote attacker with network access could exploit this vulnerability to create, delete, or modify critical database data. A successful attack can also lead to a Denial of Service (DoS) by causing the server to hang or repeatedly crash.

## Vendor advisories

- **Red Hat VEX** · Important · 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-2026-101775.json)

**mysql: mysql: unauthorized data modification via replication component** — rated Important 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