CVE-2026-92262Network attack vectorHinoki check available

Authenticated code execution via table-name encoding bypass

Published Oct 16, 2026 · Updated Oct 16, 2026

An encoding bypass in MariaDB Server allows remote authenticated users to execute code via table names with a legacy prefix. The #mysql50# table-name handler skips normal filesystem encoding and accesses legacy unencoded filenames. Exploitation requires database privileges; reported consequences also include server crashes, data corruption, and data exfiltration, but the precise SQL permissions are not disclosed.

CVSS severity9.9
Critical
EPSS probability0.68%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Get started

Summary

What happened

An encoding bypass in MariaDB Server allows remote authenticated users to execute code via table names with a legacy prefix. The #mysql50# table-name handler skips normal filesystem encoding and accesses legacy unencoded filenames. Exploitation requires database privileges; reported consequences also include server crashes, data corruption, and data exfiltration, but the precise SQL permissions are not disclosed.

The record

CVE
CVE-2026-92262
Published
Oct 16, 2026
Updated
Oct 16, 2026
Vendor
MariaDB
Product
MariaDB Server
Classifications
T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 10.11.1, < 10.11.19
  2. Affected versionversion=>= 10.6.1, < 10.6.28
  3. Affected versionversion=>= 11.4.1, < 11.4.13
  4. Affected versionversion=>= 11.8.1, < 11.8.9
  5. Affected versionversion=>= 12.3.1, < 12.3.3
  6. Affected versionversion=>= 13.0.1, < 13.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MariaDB · MariaDB Serverversion=>= 10.11.1, < 10.11.19; version=>= 10.6.1, < 10.6.28; version=>= 11.4.1, < 11.4.13; version=>= 11.8.1, < 11.8.9; version=>= 12.3.1, < 12.3.3; version=>= 13.0.1, < 13.0.2

Published CVSS scores

9.9MariaDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Get started to see how Hinoki identifies affected software and validates exploitability in your environment.

Get started