CVE-2026-49261

Name: CVE-2026-49261
Creator: NVD / NIST
Published: 2026-06-11T18:16:26.553+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.45%

Last modified Jun 17, 2026

CVE-2026-49261 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through 10.11.17, 11.4.1 through 11.4.11, 11.8.1 through 11.8.7, and 12.3.1 with `wsrep_notify_cmd` enabled would execute shell commands embedded in the name of the joiner node. EPSS estimates a 0.45% chance of exploitation in the next 30 days.

Description

MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through 10.11.17, 11.4.1 through 11.4.11, 11.8.1 through 11.8.7, and 12.3.1 with `wsrep_notify_cmd` enabled would execute shell commands embedded in the name of the joiner node. This is fixed in 10.6.27, 10.11.18, 11.4.12, 11.8.8, and 12.3.2. As a workaround, anyone who cannot upgrade now should disable `wsrep_notify_cmd`.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.45%

35.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Mariadb	Mariadb	>= 10.6.1, < 10.6.27
Mariadb	Mariadb	>= 10.11.1, < 10.11.18
Mariadb	Mariadb	>= 11.4.1, < 11.4.12
Mariadb	Mariadb	>= 11.8.1, < 11.8.8
Mariadb	Mariadb	12.3.1

References

https://github.com/MariaDB/server/security/advisories/GHSA-3p3m-4x7c-p4pwVendor Advisory
https://jira.mariadb.org/browse/MDEV-39721Issue Tracking

Timeline

Published: Jun 11, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-49261?

How severe is CVE-2026-49261?

CVE-2026-49261 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.

How do I fix CVE-2026-49261?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-49261?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST