Vulnerability details
CVE-2026-92262
MariaDB server
MariaDB: Numerous issues caused by historical #mysql50# tablename encoding bypass.
CVSS 3.1
9.9Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.9Critical | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| MariaDB | server | >= 10.11.1, < 10.11.19 | CVEProject cvelistV5 (CNA) |
| MariaDB | server | >= 10.6.1, < 10.6.28 | CVEProject cvelistV5 (CNA) |
| MariaDB | server | >= 11.4.1, < 11.4.13 | CVEProject cvelistV5 (CNA) |
| MariaDB | server | >= 11.8.1, < 11.8.9 | CVEProject cvelistV5 (CNA) |
| MariaDB | server | >= 12.3.1, < 12.3.3 | CVEProject cvelistV5 (CNA) |
| MariaDB | server | >= 13.0.1, < 13.0.2 | CVEProject cvelistV5 (CNA) |
References and advisories
10- https://jira.mariadb.org/browse/MDEV-40362 x_refsource_MISC
- https://github.com/MariaDB/server/security/advisories/GHSA-65jj-h265-3m7h x_refsource_CONFIRM
- https://github.com/MariaDB/server/commit/574ba66b2d6c5d71db83d416677876e9b592858e x_refsource_MISC
- https://github.com/MariaDB/server/commit/f277eefa424850a8cba5c2371406047f6395e8bb x_refsource_MISC
- https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19 x_refsource_MISC
- https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28 x_refsource_MISC
- https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13 x_refsource_MISC
- https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9 x_refsource_MISC
- https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3 x_refsource_MISC
- https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2 x_refsource_MISC
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Details
- Published
- 2026-10-16
- Last updated
- 2026-10-21
- State
- Published
- Assigner (CNA)
- GitHub_M
- Kolun priority
- 43 · Medium
Exploit prediction (EPSS)
1.45%
Probability of exploitation in 30 days
73.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-706Use of Incorrectly-Resolved Name or Reference