High 8.0Published Oct 9, 2026

CVE-2026-107821MariaDB: insufficient validation of binary frm data when opening a table

Updated under an hour ago (2026-10-19 06:30 UTC)

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It affects MariaDB server and 1 other product. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.76%, higher than 54% of scored CVEs.

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Every CVE for MariaDB server

Exploited in the last 30 days

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: 8.0 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-1285
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.76% (percentile 54)
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Oct 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

MariaDB server mariadb:server (from the name)	from 10.6.1, < 10.6.28; from 10.11.1, < 10.11.19; from 11.4.1, < 11.4.13; from 11.8.1, < 11.8.9; from 12.3.1, < 12.3.3; from 13.0.1, < 13.0.2	CNA record
mariadb mariadb mariadb:mariadb	from 10.6.1 before 10.6.28; from 10.11.1 before 10.11.19; from 11.4.1 before 11.4.13; from 11.8.1 before 11.8.9; from 12.3.1 before 12.3.3; from 13.0.1 before 13.0.2	NVD

References

https://github.com/MariaDB/server/security/advisories/GHSA-c4gx-34mg-95q5x-refsource-confirm, vendor-advisory
https://github.com/MariaDB/server/commit/3b1c2e58abab5571bec4ff52773ddc75b1738da9x-refsource-misc, patch
https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19x-refsource-misc, release-notes
https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28x-refsource-misc, release-notes
https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13x-refsource-misc, release-notes
https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9x-refsource-misc, release-notes
https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3x-refsource-misc, release-notes
https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2x-refsource-misc, release-notes
https://jira.mariadb.org/browse/MDEV-40571x-refsource-misc, issue-tracking

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.