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Fencer Vulns
medium 4.3

CVE-2026-3494 json

MariaDB Server Audit Plugin Comment Handling Bypass

published 2026-03-03 8 mo ago modified 2026-10-20 19 d ago also BIT-mariadb-2026-3494 , BIT-mariadb-min-2026-3494 , BIT-mysql-client-2026-3494 , EUVD-2026-9311

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits
0
none known

Summary

In MariaDB server version through 11.8.5, when server audit plugin is enabled with server_audit_events variable configured with QUERY_DCL, QUERY_DDL, or QUERY_DML filtering, if an authenticated database user invokes a SQL statement prefixed with double-hyphen (—) or hash (#) style comments, the statement is not logged.

Patch / fix

  • bitnami mariadb 10.6.25, 10.11.16, 11.4.10, 11.8.6
  • bitnami mariadb-min 10.6.25, 10.11.16, 11.4.10, 11.8.6
  • bitnami mysql-client 10.6.25, 10.11.18, 12.0.2
  • MariaDB Foundation MariaDB Server 10.6.25, 10.11.16, 11.4.10, 11.8.6
  • Amazon Aurora MySQL 2.12.6, 3.04.6, 3.10.3, 3.11.1
  • Amazon RDS for MySQL 5.7.44-RDS.20260212, 8.0.45, 8.4.8
  • Amazon RDS for MariaDB 10.6.25, 10.11.16, 11.4.10, 11.8.6
  • mariadb Debian 12 1:10.11.18-0+deb12u1
  • mariadb Debian 13 1:11.8.6-0+deb13u1
  • mariadb Debian 14 1:11.8.6-1

debian advisories DEBIAN-CVE-2026-3494

  • mariadb SLES for SAP applications 16.0, SLES 16.0 11.8.8-160000.1.1
  • mariadb SLE Module for Server Applications 15 SP7, SLE Module for Package Hub 15 SP7 11.8.8-150700.3.15.1

suse advisories SUSE-SU-2026:22095-1SUSE-SU-2026:2330-1

  • mariadb openSUSE Leap 16.0 11.8.8-160000.1.1
  • mariadb openSUSE Tumbleweed 11.8.7-1.1

opensuse advisories openSUSE-SU-2026:20933-1openSUSE-SU-2026:10897-1

  • mariadb Alpine 3.20 10.11.16-r0
  • mariadb Alpine 3.23, Alpine 3.22, Alpine 3.21 11.4.10-r0
  • mariadb Alpine 3.24 11.8.6-r0

alpine advisories ALPINE-CVE-2026-3494

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • mariadb Azure Linux 3.0 10.11.16-1

azure linux advisories AZL-79550

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-3494 updated cvss 4.3

MariaDB: MariaDB: Information disclosure due to unlogged SQL statements with comments

  • Red Hat Enterprise Linux 7 mariadb, mariadb-libs, mariadb-test, mariadb-bench, mariadb-server, mariadb-embedded Red Hat Enterprise Linux 8 Judy, galera, mariadb, mariadb-pam, mariadb-test, mariadb-backup, +8 more Red Hat Enterprise Linux 9 mariadb, mariadb-pam, mariadb-test, mariadb-backup, mariadb-common, mariadb-errmsg, +6 more Red Hat Enterprise Linux 10 mariadb11.8, mariadb10.11
    affected: no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
8 mo ago

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CNA 4.0 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CNA 4.0 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem package affected fixed in
bitnami mariadb
<10.6.25
>=10.7.0, <10.11.16
>=11.0.0, <11.4.10
>=11.5.0, <11.8.6
10.6.25
10.11.16
11.4.10
11.8.6
bitnami mariadb-min
<10.6.25
>=10.7.0, <10.11.16
>=11.0.0, <11.4.10
>=11.5.0, <11.8.6
10.6.25
10.11.16
11.4.10
11.8.6
bitnami mysql-client
<10.6.25
>=10.7.0, <10.11.18
>=11.0.0, <12.0.2
10.6.25
10.11.18
12.0.2

Affected products

  • MariaDB Foundation MariaDB Server
  • Amazon Aurora MySQL
  • Amazon RDS for MySQL
  • Amazon RDS for MariaDB

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.