Vulnerability · CVE-2026-101637

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: InnoDB).

Published Oct 20, 2026 · catalog updated Oct 28, 2026 · Vulnerability in the MySQL

Last checked Oct 31, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-101637. EPSS is 0.40%. Act only if a listed version of Vulnerability in the MySQL is installed.

Gaps on this record

The stored product name is a package slug. The name on this page is taken from the title (Vulnerability in the MySQL).
No vendor fix or required action is stored. Compare the linked advisory before you change production.

Severity: Medium5.5
Known exploitation: Not in CISA/VulnCheck KEV
EPSS: 0.40%
Remediation: Advisory link
Affected products: Ubuntu:14.04:LTS mysql-5.5 · Ubuntu:16.04:LTS mariadb-10.0 · Ubuntu:16.04:LTS percona-server-5.6 · Ubuntu:16.04:LTS percona-xtradb-cluster-5.6 · Ubuntu:18.04:LTS mariadb-10.1 · Ubuntu:20.04:LTS mariadb-10.3

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: InnoDB). Supported versions that are affected are MySQL Server: 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 9.7.0-9.7.3 and 26.7.0-26.7.1. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster as well as unauthorized update, insert or delete access to some of MySQL Server, MySQL Cluster accessible data. CVSS 3.1 Base Score 5.5 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H).

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

Ubuntu:14.04:LTS mysql-5.55.5.32-0ubuntu7, 5.5.34-0ubuntu1, 5.5.34-0ubuntu2
Ubuntu:16.04:LTS mariadb-10.010.0.20-0ubuntu0.15.04.1, 10.0.22-0ubuntu1, 10.0.23-1
Ubuntu:16.04:LTS percona-server-5.65.6.22-rel71.0-0ubuntu2, 5.6.22-rel71.0-0ubuntu4, 5.6.22-rel71.0-0ubuntu4.1
Ubuntu:16.04:LTS percona-xtradb-cluster-5.65.6.21-25.8-0ubuntu2, 5.6.21-25.8-0ubuntu3, 5.6.21-25.8-0ubuntu3.1
Ubuntu:18.04:LTS mariadb-10.110.1.25-1, 1:10.1.29-6, 1:10.1.34-0ubuntu0.18.04.1
Ubuntu:20.04:LTS mariadb-10.31:10.3.17-1, 1:10.3.18-1, 1:10.3.19-1
Ubuntu:22.04:LTS mariadb-10.61:10.6.7-2ubuntu1, 1:10.6.7-2ubuntu1.1, 1:10.6.11-0ubuntu0.22.04.1
Ubuntu:24.04:LTS mariadb1:10.11.4-1, 1:10.11.5-3, 1:10.11.6-1
Ubuntu:26.10 mariadb1:11.8.6-5, 1:11.8.8-1, 1:11.8.9+ds-4ubuntu2
Ubuntu:26.10 mysql-9.79.7.2-4, 9.7.2-4ubuntu1
Ubuntu:Pro:16.04:LTS mysql-5.75.7.11-0ubuntu4, 5.7.11-0ubuntu5, 5.7.11-0ubuntu6
Ubuntu:Pro:18.04:LTS mysql-5.75.7.19-0ubuntu1, 5.7.20-0ubuntu0.17.10.1, 5.7.20-1ubuntu1

How to fix CVE-2026-101637

No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
Seen in 5.5.32-0ubuntu7 · 17 other packages on the advisory
Advisory
Open the cve_org record and follow its fix.
Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-101637. EPSS is 0.40%. Act only if a listed version of Vulnerability in the MySQL is installed.

Which versions are affected?

Compare what you have installed with 5.5.32-0ubuntu7, 5.5.34-0ubuntu1, 5.5.34-0ubuntu2, 10.0.20-0ubuntu0.15.04.1, 10.0.22-0ubuntu1, 10.0.23-1, 5.6.22-rel71.0-0ubuntu2, 5.6.22-rel71.0-0ubuntu4, 5.6.22-rel71.0-0ubuntu4.1, 5.6.21-25.8-0ubuntu2, 5.6.21-25.8-0ubuntu3, 5.6.21-25.8-0ubuntu3.1, 10.1.25-1, 1:10.1.29-6, 1:10.1.34-0ubuntu0.18.04.1, 1:10.3.17-1, 1:10.3.18-1, 1:10.3.19-1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-284: Improper Access Control. EPSS 0.40%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

MariaDB security MySQL security Ubuntu security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

Oct 20, 2026 · NIST NVD
Detected
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: InnoDB). Supported versions that are affected are MySQL Server: 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 9.7.0-9.7.3 and 26.7.0-26.7.1. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this
Oct 21, 2026 · NIST NVD
Updated
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: InnoDB). Supported versions that are affected are MySQL Server: 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 9.7.0-9.7.3 and 26.7.0-26.7.1. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this
Oct 28, 2026 · OpenSSF OSV / OSV Scanner
Updated
CVE-2026-101637 affects MySQL Server, MySQL Cluster (InnoDB). Affects MySQL 9.7.

Sources

CVE.orgVulnerability recordCVE-2026-101637
Official CVE identifier
cve.org
FIRST EPSSExploitation probabilityCVE-2026-101637
30-day exploitation probability 0.40%
first.org
NIST NVDVulnerability recordCVE-2026-101637
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: InnoDB). Supported versions that are affected are MySQL Server: 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 9.7.0-9.7.3 and 26.7.0-26.7.1. Easily exploitable vulnerability allows high privileged
nvd.nist.gov
OpenSSF OSV / OSV ScannerPackage advisoryUBUNTU-CVE-2026-101637
osv.dev

References

Freshness

Last verified in this catalog Oct 31, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

FIRST EPSSOct 31, 2026
OpenSSF OSV / OSV ScannerOct 28, 2026
CVE.orgOct 22, 2026
NIST NVDOct 21, 2026

Priority score

20/100

Evidence confidence: High

Several independent sources name this vulnerability.

Confirmed exploitation0/30
EPSS probability1/20
CVSS severity8/15
Public exploit0/10
Internet exposure6/10
Product prevalence5/5
Detection0/5
Threat research0/5

Decision signals

Four separate signals — do not infer one from another.

Medium

CVSS severity
5.5 v3.1
Technical impact. Separate from exploitation likelihood.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H
EPSS probability
0.40% · p33.43%
Estimated probability of exploitation within 30 days (FIRST).
Known exploitation
No verified KEV listing
Evidence from CISA KEV or VulnCheck KEV only — not from EPSS alone.
Patch availability
Advisory link
A patch or advisory reference is linked. Open the original publisher for availability by product version.

Stacks

Linux MariaDB MySQL Oracle Ubuntu Ubuntu 14.04 Ubuntu 16.04 Ubuntu 18.04 Ubuntu 20.04 Ubuntu 22.04 Ubuntu 24.04 Ubuntu 26.10

Weakness

CWE-284
Improper Access Control
MITRE definition

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