No exploitation reportedFix available

CVE-2026-49261

Q: Is CVE-2026-49261 actively exploited?

Active exploitation of CVE-2026-49261 has not been confirmed. Its EPSS score was 1.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2026-49261?

CVE-2026-49261 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2026-06-11
Fixed in11.8.8 · 11.4.12 · 10.11.18 · 10.6.27
WeaknessCWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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`.

Timeline

dates in UTC

2026-06-1118:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-49261?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-49261?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

MariaDB

Branch	Affected	Fixed in	Source
11.8	≥ 11.8.1, < 11.8.8	11.8.8	NVD
11.4	≥ 11.4.1, < 11.4.12	11.4.12	NVD
10.11	≥ 10.11.1, < 10.11.18	10.11.18	NVD
10.6	≥ 10.6.1, < 10.6.27	10.6.27	NVD
12.3	= 12.3.1	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update MariaDB to 11.8.8 · 11.4.12 · 10.11.18 · 10.6.27

Advisories and patches

github.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2026-06-11
OpenCVESSVC decisionnone—
CNACVSS 3.110read 2026-10-23
NVDCVSS 3.19.8read 2026-10-23
CNAweakness (CWE)CWE-78read 2026-10-23
FIRST EPSSEPSS score1.7 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2026-06-11
Last Modified: 2026-08-12
NVD status: Modified

Frequently asked questions

What is CVE-2026-49261?

Is CVE-2026-49261 actively exploited?

Active exploitation of CVE-2026-49261 has not been confirmed. Its EPSS score was 1.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-49261?

CVE-2026-49261 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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