CVE-2026-102523: MariaDB server · External Control of File Name or Path
Affects MariaDB serverSource CVE Database V5
Not known to be exploited · CVSS 8.0 High · fixed in 13.0.2 : patch MariaDB server soon.
Data as of 5 Nov 2026, 15:49 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 8.0 |
|---|
- Patch
- Available – fixed in 13.0.2, 12.3.3, 11.8.9 +2
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 5 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| MariaDBserver | Affected
| Fixed in
|
| MariaDBserver | Affected
| Fixed in
|
| MariaDBserver | Affected
| Fixed in
|
| MariaDBserver | Affected
| Fixed in
|
| MariaDBserver | Affected
| Fixed in
|
Description
MariaDB server is a community developed fork of MySQL server. From 10.11.1 until 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, ALTER TABLE ... CONVERT ... PARTITION does not apply filename encoding to user-specified partition names before using them in filesystem path construction. An authenticated database user can use a partition name requiring filename escaping to make the conversion operate on table files the user is not authorized to access, allowing unauthorized table reads or modifications. This issue is fixed in versions 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.
References
- github.com/MariaDB/server/security/advisories/GHSA-h4vr-wpff-jfx4 (opens in a new tab)
- github.com/MariaDB/server/commit/98437c30ae52ed709f266e5f8095d779261a5879 (opens in a new tab)
- github.com/MariaDB/server/releases/tag/mariadb-10.11.19 (opens in a new tab)
- github.com/MariaDB/server/releases/tag/mariadb-11.4.13 (opens in a new tab)
- github.com/MariaDB/server/releases/tag/mariadb-11.8.9 (opens in a new tab)
- github.com/MariaDB/server/releases/tag/mariadb-12.3.3 (opens in a new tab)
- github.com/MariaDB/server/releases/tag/mariadb-13.0.2 (opens in a new tab)
- jira.mariadb.org/browse/MDEV-40413 (opens in a new tab)