MariaDB: Numerous issues caused by historical #mysql50# tablename encoding bypass.
Summary
| CVE | CVE-2026-92262 |
|---|---|
| State | PUBLISHED |
| Assigner | GitHub_M |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-16 17:17:52 UTC |
| Updated | 2026-10-21 03:17:20 UTC |
| Description | MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the #mysql50# bypass prefix is affected because it allows the #mysql50# prefix to bypass normal table-name filesystem encoding. An attacker can trigger the issue with a table name using the #mysql50# prefix, then use a #mysql50# table name to access files under their legacy unencoded name and cause crashes, data corruption, data exfiltration, or remote code execution. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2. |
Risk And Classification
Primary CVSS: v3.1 9.9 CRITICAL from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Problem Types: CWE-706 | CWE-706 CWE-706: Use of Incorrectly-Resolved Name or Reference
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 9.9 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 9.9 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
ChangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | MariaDB | Server | affected >= 10.6.1, < 10.6.28 | Not specified |
| CNA | MariaDB | Server | affected >= 10.11.1, < 10.11.19 | Not specified |
| CNA | MariaDB | Server | affected >= 11.4.1, < 11.4.13 | Not specified |
| CNA | MariaDB | Server | affected >= 11.8.1, < 11.8.9 | Not specified |
| CNA | MariaDB | Server | affected >= 12.3.1, < 12.3.3 | Not specified |
| CNA | MariaDB | Server | affected >= 13.0.1, < 13.0.2 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/MariaDB/server/releases/tag/mariadb-10.6.28 | [email protected] | github.com | Release Notes |
| github.com/MariaDB/server/releases/tag/mariadb-13.0.2 | [email protected] | github.com | Release Notes |
| github.com/MariaDB/server/releases/tag/mariadb-11.8.9 | [email protected] | github.com | Release Notes |
| github.com/MariaDB/server/commit/574ba66b2d6c5d71db83d416677876e9b592858e | [email protected] | github.com | Patch |
| github.com/MariaDB/server/security/advisories/GHSA-65jj-h265-3m7h | [email protected] | github.com | Vendor Advisory |
| github.com/MariaDB/server/releases/tag/mariadb-10.11.19 | [email protected] | github.com | Release Notes |
| jira.mariadb.org/browse/MDEV-40362 | [email protected] | jira.mariadb.org | Issue Tracking |
| github.com/MariaDB/server/releases/tag/mariadb-12.3.3 | [email protected] | github.com | Release Notes |
| github.com/MariaDB/server/releases/tag/mariadb-11.4.13 | [email protected] | github.com | Release Notes |
| github.com/MariaDB/server/commit/f277eefa424850a8cba5c2371406047f6395e8bb | [email protected] | github.com | Patch |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.