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VulnerabilityPublished

CVE-2026-102523: MariaDB server · External Control of File Name or Path

Affects MariaDB serverSource CVE Database V5

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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

CVSS 3.1 base score
8.0High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (GitHub_M)CVSS 3.18.0
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:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 5 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
MariaDBserverAffected
  • >=13.0.1 <13.0.2
Fixed in
  • 13.0.2
MariaDBserverAffected
  • >=12.3.1 <12.3.3
Fixed in
  • 12.3.3
MariaDBserverAffected
  • >=11.8.1 <11.8.9
Fixed in
  • 11.8.9
MariaDBserverAffected
  • >=11.4.1 <11.4.13
Fixed in
  • 11.4.13
MariaDBserverAffected
  • >=10.11.1 <10.11.19
Fixed in
  • 10.11.19

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

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