CVE-2026-107821
An attacker able to place a crafted FRM file in the data directory could trigger out-of-bounds reads or writes, crash the server, or potentially execute code.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.20%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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, MariaDB insufficiently validated counts, offsets, lengths, and field boundaries in FRM metadata while opening binary FRM files. An attacker able to place a crafted FRM file in the data directory could trigger out-of-bounds reads or writes, crash the server, or potentially execute code. 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 3.1
- 8.0 HIGHCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 1.20% probability · 68th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-1285
- Affected
- mariadb/mariadb
- Source
- security-advisories@github.com
EPSS moved from 0.5% on 10 October 2026 to 1.2% on 27 October 2026.
References
- https://github.com/MariaDB/server/commit/3b1c2e58abab5571bec4ff52773ddc75b1738da9Patch
- https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19Release Notes
- https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28Release Notes
- https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13Release Notes
- https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9Release Notes
- https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3Release Notes
- https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2Release Notes
- https://github.com/MariaDB/server/security/advisories/GHSA-c4gx-34mg-95q5Vendor Advisory
- https://jira.mariadb.org/browse/MDEV-40571Issue Tracking
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.