How severe is CVE-2026-3494?

CVE-2026-3494 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-3494 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-3494?

CVE-2026-3494 primarily affects Mariadb. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-3494?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-3494 have an EU (EUVD) identifier?

Yes. CVE-2026-3494 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9311.

When was CVE-2026-3494 published?

CVE-2026-3494 was published on 2026-03-03 and last updated on 2026-06-17.

CVE-2026-3494

CVE-2026-3494 is a medium-severity vulnerability in Mariadb with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-778.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v4: 5.3
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9311
Weakness: CWE-778
Affected product: Mariadb
Published: 2026-03-03
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-3494?: 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.
How severe is CVE-2026-3494?: CVE-2026-3494 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-3494 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-3494?: CVE-2026-3494 primarily affects Mariadb. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-3494?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-3494 have an EU (EUVD) identifier?: Yes. CVE-2026-3494 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9311.
When was CVE-2026-3494 published?: CVE-2026-3494 was published on 2026-03-03 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*
cpe:2.3:a:amazon:aurora_mysql:*:*:*:*:*:*:*:*
cpe:2.3:a:amazon:aurora_mysql:3.11.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:relational_database_service:*:*:*:*:*:mysql:*:*
cpe:2.3:a:amazon:relational_database_service:*:*:*:*:*:mariadb:*:*

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