Medium · CVSS 5.3CVE-2026-3494

MariaDB Server Audit Plugin Comment Handling BypassCVE-2026-3494

Answer in brief

CVE-2026-3494 records a Medium severity (CVSS 5.3) vulnerability in MariaDB Server Audit Plugin Comment Handling Bypass. The current sources do not mark it as known exploited. The current feed maps Amazon/Aurora MySQL (generic), MariaDB Foundation/MariaDB Server (generic), Amazon/RDS for MariaDB (generic), Amazon/RDS for MySQL (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Mar 3, 2026Updated Oct 20, 2026Source checked Oct 20, 2026First seen by HOL Oct 20, 2026Material review Oct 20, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.3
Exploitation: Not marked as known exploited
Affected software: 4 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Amazon/Aurora MySQL (generic), MariaDB Foundation/MariaDB Server (generic), Amazon/RDS for MariaDB (generic), Amazon/RDS for MySQL (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Amazon/Aurora MySQLgeneric	>=0 <2.12.6 \|\| >=0 <3.04.6 \|\| >=0 <3.10.3 \|\| >=0 <3.11.1	2.12.6, 3.04.6, 3.10.3, 3.11.1
MariaDB Foundation/MariaDB Servergeneric	>=0 <10.6.25 \|\| >=0 <10.11.16 \|\| >=0 <11.4.10 \|\| >=0 <11.8.6	10.6.25, 10.11.16, 11.4.10, 11.8.6
Amazon/RDS for MariaDBgeneric	>=0 <10.6.25 \|\| >=0 <10.11.16 \|\| >=0 <11.4.10 \|\| >=0 <11.8.6	10.6.25, 10.11.16, 11.4.10, 11.8.6
Amazon/RDS for MySQLgeneric	>=0 <5.7.44-RDS.20260212 \|\| >=0 <8.0.45 \|\| >=0 <8.4.8	5.7.44-RDS.20260212, 8.0.45, 8.4.8

Recommended response

Check inventory. Check lockfiles and deployed manifests for Amazon/Aurora MySQL, MariaDB Foundation/MariaDB Server, Amazon/RDS for MariaDB.
Review the reported fix. Update Amazon/Aurora MySQL to 2.12.6; MariaDB Foundation/MariaDB Server to 10.6.25; Amazon/RDS for MariaDB to 10.6.25; Amazon/RDS for MySQL to 5.7.44-RDS.20260212 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Mar 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 20, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 20, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.