CVE-2026-107821

MariaDB: insufficient validation of binary frm data when opening a table

HIGH
8
CVSS Score
Published: October 9, 2026 at 05:27 PM UTC
Updated: October 14, 2026 at 02:13 PM UTC
1 product affected across 1 vendorMariaDB

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Severity
HIGH8
Exploit prediction
EPSS 1%
SSVC
No known 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

10.11.1 ≤ v < 10.11.1910.6.1 ≤ v < 10.6.2811.4.1 ≤ v < 11.4.1311.8.1 ≤ v < 11.8.912.3.1 ≤ v < 12.3.313.0.1 ≤ v < 13.0.2>= 10.11.1, < 10.11.19>= 10.6.1, < 10.6.28>= 11.4.1, < 11.4.13>= 11.8.1, < 11.8.9>= 12.3.1, < 12.3.3>= 13.0.1, < 13.0.2

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (9)

x_refsource_CONFIRMVendor Advisory
Source: cverecord
https://github.com/MariaDB/server/security/advisories/GHSA-c4gx-34mg-95q5
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8HIGHGitHub_M
Attack Vector
NETWORK
Complexity
HIGH
Privileges
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-1285

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