CVE-2026-44170: MariaDB server is a community developed fork of MySQL server

This week

CRITICAL 9.8REMOTEWATCHLISTUPGRADE

CVE-2026-44170 is a critical-severity flaw (CVSS 9.8) affecting mariadb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

MariaDB server is a community developed fork of MySQL server. From versions 10.6.1 to before 10.6.26, 10.11.1 to before 10.11.17, 11.4.1 to before 11.4.11, 11.8.1 to before 11.8.7, and 12.3.1, MariaDB on WIndows with installed CONNECT engine and enabled REST support interpolated table HTTP attribute into the curl command line without proper sanitizing. This allows the user to execute shell commands on the server. This issue has been patched in ve

Why this priority

Critical severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-06-12
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: mariadb

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-12 18:16 UTCPublished CVE record published
2026-10-26 11:10 UTCUpdated Record last modified

mariadb mariadb UPGRADE

Affected: >= 10.6.1 and < 10.6.26 · >= 10.11.1 and < 10.11.17 · >= 11.4.1 and < 11.4.11 · >= 11.8.1 and < 11.8.7 · 12.3.1

Fixed in: 10.6.26, 10.11.17, 11.4.11, 11.8.7

Safe to downgrade to: a release before 10.6.1

1. Check installed version

apt-cache policy mariadb || rpm -q mariadb || mariadb --version

2. UPGRADE to 10.6.26 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mariadb

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mariadb

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 10.6.1 (Debian / Ubuntu)

apt-cache madison mariadb sudo apt install mariadb=<VERSION_BEFORE_10.6.1> sudo apt-mark hold mariadb

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list mariadb sudo dnf downgrade mariadb-<VERSION_BEFORE_10.6.1> sudo dnf versionlock add mariadb

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Exact fixes by distribution

Fedora 46 · flare-im · FIXED · 0.22.7-1.fc46 · FEDORA-2026-cd5e8062a1 · source

sudo dnf upgrade --advisory=FEDORA-2026-cd5e8062a1

Fedora ELN · libdnf · FIXED · 0.76.0-2.eln159 · FEDORA-2026-dbd263e9d4 · source

sudo dnf upgrade --advisory=FEDORA-2026-dbd263e9d4

Debian 12 · mariadb · NOT AFFECTED

Debian 13 · mariadb · NOT AFFECTED

RHEL 10 · mariadb10.11 · FIXED · mariadb10.11-10.11.18-1.el10_2

sudo dnf upgrade --advisory=RHSA-2026:33093 rpm -q mariadb10.11

RHEL 10 · mariadb11.8 · FIXED · mariadb11.8-11.8.8-1.el10_2

sudo dnf upgrade --advisory=RHSA-2026:33412 rpm -q mariadb11.8

RHEL 10.0 Extended Update Support · mariadb10.11 · FIXED · mariadb10.11-10.11.18-1.el10_0

sudo dnf upgrade --advisory=RHSA-2026:49522 rpm -q mariadb10.11

RHEL 7 · mariadb · NOT AFFECTED

RHEL 9 · mariadb · NOT AFFECTED

Alpine 3.20 · mariadb · FIXED · mariadb-10.11.17-r0

apk add --upgrade mariadb apk info -v mariadb

Alpine 3.21 · mariadb · FIXED · mariadb-11.4.11-r0

apk add --upgrade mariadb apk info -v mariadb

Alpine 3.22 · mariadb · FIXED · mariadb-11.4.11-r0

apk add --upgrade mariadb apk info -v mariadb

Alpine 3.23 · mariadb · FIXED · mariadb-11.4.11-r0

apk add --upgrade mariadb apk info -v mariadb

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-44170?

mariadb: upgrade to 10.6.26, 10.11.17, 11.4.11, 11.8.7. Exact commands for each OS are on this page.

Is CVE-2026-44170 being exploited?

CVE-2026-44170 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-44170 affect?

CVE-2026-44170 affects mariadb. Severity is critical (CVSS 9.8). MariaDB server is a community developed fork of MySQL server. From versions 10.6.1 to before 10.6.26, 10.11.1 to before 10.11.17, 11.4.1 to before 11.4.11, 11.8.1 to before 11.8.7, and 12.3.1, MariaDB on WIndows with installed CONNECT engin

How urgent is CVE-2026-44170?

Priority 62/100. Critical severity; Remotely exploitable, no login, no user action; On your watchlist

Software pages

MySQL vulnerabilities · MariaDB vulnerabilities · Windows vulnerabilities · curl vulnerabilities

Related CVEs

CVE-2026-49261 CRITICAL 10.0 UPGRADE MariaDB server is a community developed fork of MySQL server
CVE-2026-44172 CRITICAL 9.1 DOWNGRADE MITIGATE MariaDB server is a community developed fork of MySQL server
CVE-2026-48165 HIGH 8.0 UPGRADE MariaDB server is a community developed fork of MySQL server
CVE-2026-48163 HIGH 8.0 UPGRADE MariaDB server is a community developed fork of MySQL server
CVE-2026-44168 HIGH 8.0 UPGRADE MariaDB server is a community developed fork of MySQL server

References

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