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CVE-2026-49261: mariadb OS Command Injection

CVSS: 10.0v3.1CriticalModified
AliasesRHSA-2026:52848RHSA-2026:54142UBUNTU-CVE-2026-49261
Published 11-06-2026Last modified 12-08-2026
Open JSON

Vulnerability summary

CVE-2026-49261 is a critical (CVSS 10.0) OS Command Injection vulnerability in mariadb. EPSS estimates a 1.69% chance of exploitation in the next 30 days, higher than 76.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
10.0/10
010
Critical · v3.1 (CVE.org)
EPSS score
1.69%
0%100%
Low · +0.11 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 13 · Related 5
MGASA-2026-0207OPENSUSE-SU-2026:10934-1OPENSUSE-SU-2026:20933-1RHSA-2026:25143RHSA-2026:25145RHSA-2026:33093

Timeline

  1. 11-06-2026
    PublishedVulnerability first disclosed.
  2. 12-08-2026
    Last modifiedVulnerability information updated.

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`.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

1.69%

Chance of exploitation in the next 30 days

Percentile

77%

Versus all other CVEs

30-day change

+0.11 pp

From 1.58% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.69%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat27 products
  • galera< 0:26.4.16-1.module+el9.4.0+21205+b026b850 | < 0:26.4.20-1.module+el9.5.0+22578+dc54e53f
  • galera-debuginfo< 0:26.4.16-1.module+el9.4.0+21205+b026b850 | < 0:26.4.20-1.module+el9.5.0+22578+dc54e53f
  • galera-debugsource< 0:26.4.16-1.module+el9.4.0+21205+b026b850 | < 0:26.4.20-1.module+el9.5.0+22578+dc54e53f
  • mariadb< 3:10.11.18-1.module+el9.4.0+24597+6b9092cf | < 3:10.11.18-1.module+el9.6.0+24596+9fa1b3e9
  • mariadb-backup< 3:10.11.18-1.module+el9.4.0+24597+6b9092cf | < 3:10.11.18-1.module+el9.6.0+24596+9fa1b3e9
Ubuntu5 products
  • mariadbAll versions (No fix recorded) | < 1:11.8.6-5ubuntu0.1
  • mariadb-10.0All versions (No fix recorded)
  • mariadb-10.1All versions (No fix recorded)
  • mariadb-10.3All versions (No fix recorded)
  • mariadb-10.6All versions (No fix recorded)
Mariadb2 products
  • mariadb≥ 10.6.1, < 10.6.27 | ≥ 10.11.1, < 10.11.18 | ≥ 11.4.1, < 11.4.12 | ≥ 11.8.1, < 11.8.8 | 12.3.1
  • server≥ 10.6.1, < 10.6.27 | ≥ 10.11.1, < 10.11.18 | ≥ 11.4.1, < 11.4.12 | ≥ 11.8.1, < 11.8.8 | = 12.3.1
Chainguard1 product
  • mariadb-11.8< 11.8.9-r1
Debian1 product
  • mariadb< 1:10.11.18-0+deb12u1 | All versions (No fix recorded) | < 1:11.8.8-1
Wolfi1 product
  • mariadb-11.8< 11.8.9-r1

6 vendors · 37 products

References

24 links
Show all 24 references