CVE-2026-101788

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

5.9 MediumFix available

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Components Services). Supported versions that are affected are MySQL Server: 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3 and 26.7.0-26.7.1. Difficult to exploit vulnerability allows unauthenticated 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. CVSS 3.1 Base Score 5.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.33%Unchanged since Oct 21, 2026

What each source reports

CVE List Score used5.9

Record: CVE-2026-101788
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-284
Updated: 2026-11-02

EUVDEUVD-2026-1061895.9

Record: EUVD-2026-106189
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-58p2-v49j-2vcf5.9

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

Record: GHSA-58p2-v49j-2vcf
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-284
Updated: 2026-11-02

NVD5.9

Record: CVE-2026-101788
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-284
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-1017885.9

Record: UBUNTU-CVE-2026-101788
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-12

OSVUSN-9046-1No score

mysql-8.0, mysql-8.4, mysql-9.7 vulnerabilities

Multiple security issues were discovered in MySQL.

MySQL has been updated to 8.4.13 in Ubuntu 26.04 LTS. Ubuntu 26.10 has been updated to MySQL 9.7.4. Ubuntu 22.04 LTS and Ubuntu 24.04 LTS packages have been updated with backported patches.

In addition to security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes.

Please see the following for more information:

https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-13.html https://dev.mysql.com/doc/relnotes/mysql/9.7/en/news-9-7-4.html https://www.oracle.com/security-alerts/cpuoct2026.html

Record: USN-9046-1
Updated: 2026-11-12

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`mysql-5.5` Ubuntu:14.04:LTS	All versions, plus listed versions 5.5.32-0ubuntu75.5.34-0ubuntu15.5.34-0ubuntu25.5.35-0ubuntu15.5.35+dfsg-1ubuntu1 Show 20 moreShow less 5.5.37-0ubuntu0.14.04.15.5.38-0ubuntu0.14.04.15.5.40-0ubuntu0.14.04.15.5.41-0ubuntu0.14.04.15.5.43-0ubuntu0.14.04.15.5.44-0ubuntu0.14.04.15.5.46-0ubuntu0.14.04.25.5.47-0ubuntu0.14.04.15.5.49-0ubuntu0.14.04.15.5.50-0ubuntu0.14.04.15.5.52-0ubuntu0.14.04.15.5.53-0ubuntu0.14.04.15.5.54-0ubuntu0.14.04.15.5.55-0ubuntu0.14.04.15.5.57-0ubuntu0.14.04.15.5.58-0ubuntu0.14.04.15.5.59-0ubuntu0.14.04.15.5.60-0ubuntu0.14.04.15.5.61-0ubuntu0.14.04.15.5.62-0ubuntu0.14.04.1	None known
`mysql-5.7` Ubuntu:Pro:16.04:LTS	All versions, plus listed versions 5.7.11-0ubuntu45.7.11-0ubuntu55.7.11-0ubuntu65.7.12-0ubuntu15.7.12-0ubuntu1.1 Show 31 moreShow less 5.7.13-0ubuntu0.16.04.25.7.15-0ubuntu0.16.04.15.7.16-0ubuntu0.16.04.15.7.17-0ubuntu0.16.04.15.7.17-0ubuntu0.16.04.25.7.18-0ubuntu0.16.04.15.7.19-0ubuntu0.16.04.15.7.20-0ubuntu0.16.04.15.7.21-0ubuntu0.16.04.15.7.22-0ubuntu0.16.04.15.7.23-0ubuntu0.16.04.15.7.24-0ubuntu0.16.04.15.7.25-0ubuntu0.16.04.25.7.26-0ubuntu0.16.04.15.7.27-0ubuntu0.16.04.15.7.28-0ubuntu0.16.04.25.7.29-0ubuntu0.16.04.15.7.30-0ubuntu0.16.04.15.7.31-0ubuntu0.16.04.15.7.32-0ubuntu0.16.04.15.7.33-0ubuntu0.16.04.15.7.35-0ubuntu0.16.04.1+esm15.7.36-0ubuntu0.16.04.1+esm15.7.37-0ubuntu0.16.04.1+esm15.7.38-0ubuntu0.16.04.1+esm15.7.39-0ubuntu0.16.04.1+esm25.7.40-0ubuntu0.16.04.1+esm15.7.41-0ubuntu0.16.04.1+esm15.7.42-0ubuntu0.16.04.1+esm15.7.43-0ubuntu0.16.04.1+esm15.7.44-0ubuntu0.16.04.1+esm1	None known
`mariadb-10.0` Ubuntu:16.04:LTS	All versions, plus listed versions 10.0.20-0ubuntu0.15.04.110.0.22-0ubuntu110.0.23-110.0.23-210.0.24-7 Show 9 moreShow less 10.0.25-0ubuntu0.16.04.110.0.27-0ubuntu0.16.04.110.0.28-0ubuntu0.16.04.110.0.29-0ubuntu0.16.04.110.0.31-0ubuntu0.16.04.210.0.33-0ubuntu0.16.04.110.0.34-0ubuntu0.16.04.110.0.36-0ubuntu0.16.04.110.0.38-0ubuntu0.16.04.1	None known
`percona-server-5.6` Ubuntu:16.04:LTS	All versions, plus listed versions 5.6.22-rel71.0-0ubuntu25.6.22-rel71.0-0ubuntu45.6.22-rel71.0-0ubuntu4.1	None known
`percona-xtradb-cluster-5.6` Ubuntu:16.04:LTS	All versions, plus listed versions 5.6.21-25.8-0ubuntu25.6.21-25.8-0ubuntu35.6.21-25.8-0ubuntu3.15.6.21-25.8-0ubuntu3.25.6.34-26.19-0ubuntu0.16.04.15.6.34-26.19-0ubuntu0.16.04.25.6.37-26.21-0ubuntu0.16.04.15.6.37-26.21-0ubuntu0.16.04.2	None known
`mysql-5.7` Ubuntu:Pro:18.04:LTS	All versions, plus listed versions 5.7.19-0ubuntu15.7.20-0ubuntu0.17.10.15.7.20-1ubuntu15.7.21-1ubuntu15.7.22-0ubuntu18.04.1 Show 23 moreShow less 5.7.23-0ubuntu0.18.04.15.7.24-0ubuntu0.18.04.15.7.25-0ubuntu0.18.04.25.7.26-0ubuntu0.18.04.15.7.27-0ubuntu0.18.04.15.7.28-0ubuntu0.18.04.45.7.29-0ubuntu0.18.04.15.7.30-0ubuntu0.18.04.15.7.31-0ubuntu0.18.04.15.7.32-0ubuntu0.18.04.15.7.33-0ubuntu0.18.04.15.7.34-0ubuntu0.18.04.15.7.35-0ubuntu0.18.04.15.7.35-0ubuntu0.18.04.25.7.36-0ubuntu0.18.04.15.7.37-0ubuntu0.18.04.15.7.38-0ubuntu0.18.04.15.7.39-0ubuntu0.18.04.25.7.40-0ubuntu0.18.04.15.7.41-0ubuntu0.18.04.15.7.42-0ubuntu0.18.04.15.7.43-0ubuntu0.18.04.1+esm15.7.44-0ubuntu0.18.04.1+esm1	None known
`mariadb-10.1` Ubuntu:18.04:LTS	All versions, plus listed versions 10.1.25-11:10.1.29-61:10.1.34-0ubuntu0.18.04.11:10.1.38-0ubuntu0.18.04.11:10.1.38-0ubuntu0.18.04.2 Show 6 moreShow less 1:10.1.40-0ubuntu0.18.04.11:10.1.41-0ubuntu0.18.04.11:10.1.43-0ubuntu0.18.04.11:10.1.44-0ubuntu0.18.04.11:10.1.47-0ubuntu0.18.04.11:10.1.48-0ubuntu0.18.04.1	None known
`mysql-8.0` Ubuntu:Pro:20.04:LTS	All versions, plus listed versions 8.0.17-0ubuntu28.0.17-0ubuntu38.0.18-0ubuntu38.0.18-0ubuntu48.0.18-0ubuntu5 Show 37 moreShow less 8.0.19-0ubuntu28.0.19-0ubuntu38.0.19-0ubuntu48.0.19-0ubuntu58.0.20-0ubuntu0.20.04.18.0.21-0ubuntu0.20.04.38.0.21-0ubuntu0.20.04.48.0.22-0ubuntu0.20.04.28.0.22-0ubuntu0.20.04.38.0.23-0ubuntu0.20.04.18.0.25-0ubuntu0.20.04.18.0.26-0ubuntu0.20.04.28.0.26-0ubuntu0.20.04.38.0.27-0ubuntu0.20.04.18.0.28-0ubuntu0.20.04.38.0.29-0ubuntu0.20.04.28.0.29-0ubuntu0.20.04.38.0.30-0ubuntu0.20.04.28.0.31-0ubuntu0.20.04.18.0.31-0ubuntu0.20.04.28.0.32-0buntu0.20.04.18.0.32-0ubuntu0.20.04.28.0.33-0ubuntu0.20.04.18.0.33-0ubuntu0.20.04.28.0.33-0ubuntu0.20.04.48.0.34-0ubuntu0.20.04.18.0.35-0ubuntu0.20.04.18.0.36-0ubuntu0.20.04.18.0.37-0ubuntu0.20.04.38.0.39-0ubuntu0.20.04.18.0.40-0ubuntu0.20.04.18.0.41-0ubuntu0.20.04.18.0.42-0ubuntu0.20.04.18.0.43-0ubuntu0.20.04.1+esm18.0.45-0ubuntu0.20.04.1+esm28.0.46-0ubuntu0.20.04.1+esm28.0.46-0ubuntu0.20.04.1+esm3	None known
`mariadb-10.3` Ubuntu:20.04:LTS	All versions, plus listed versions 1:10.3.17-11:10.3.18-11:10.3.19-11:10.3.21-21:10.3.22-1 Show 10 moreShow less 1:10.3.22-1ubuntu11:10.3.25-0ubuntu0.20.04.11:10.3.29-0ubuntu0.20.04.11:10.3.30-0ubuntu0.20.04.11:10.3.31-0ubuntu0.20.04.11:10.3.32-0ubuntu0.20.04.11:10.3.34-0ubuntu0.20.04.11:10.3.37-0ubuntu0.20.04.11:10.3.38-0ubuntu0.20.04.11:10.3.39-0ubuntu0.20.04.2	None known
`mariadb-10.6` Ubuntu:22.04:LTS	All versions, plus listed versions 1:10.6.7-2ubuntu11:10.6.7-2ubuntu1.11:10.6.11-0ubuntu0.22.04.11:10.6.12-0ubuntu0.22.04.11:10.6.16-0ubuntu0.22.04.1 Show 4 moreShow less 1:10.6.18-0ubuntu0.22.04.11:10.6.21-0ubuntu0.22.04.21:10.6.22-0ubuntu0.22.04.11:10.6.23-0ubuntu0.22.04.1	None known

Show 11 moreShow less

Affected packages
Package	Affected	Fixed
`mysql-8.0` Ubuntu:22.04:LTS	before 8.0.46-0ubuntu0.22.04.5, plus listed versions 8.0.26-0ubuntu18.0.27-0ubuntu0.21.10.18.0.28-0ubuntu38.0.28-0ubuntu48.0.29-0ubuntu0.22.04.1 Show 26 moreShow less 8.0.29-0ubuntu0.22.04.28.0.29-0ubuntu0.22.04.38.0.30-0ubuntu0.22.04.18.0.31-0ubuntu0.22.04.18.0.32-0buntu0.22.04.18.0.32-0ubuntu0.22.04.28.0.33-0ubuntu0.22.04.18.0.33-0ubuntu0.22.04.28.0.33-0ubuntu0.22.04.48.0.34-0ubuntu0.22.04.18.0.35-0ubuntu0.22.04.18.0.36-0ubuntu0.22.04.18.0.37-0ubuntu0.22.04.38.0.39-0ubuntu0.22.04.18.0.40-0ubuntu0.22.04.18.0.41-0ubuntu0.22.04.18.0.42-0ubuntu0.22.04.18.0.42-0ubuntu0.22.04.28.0.43-0ubuntu0.22.04.18.0.43-0ubuntu0.22.04.28.0.44-0ubuntu0.22.04.18.0.44-0ubuntu0.22.04.28.0.45-0ubuntu0.22.04.18.0.46-0ubuntu0.22.04.28.0.46-0ubuntu0.22.04.38.0.46-0ubuntu0.22.04.4	8.0.46-0ubuntu0.22.04.5
`mariadb` Ubuntu:24.04:LTS	All versions, plus listed versions 1:10.11.4-11:10.11.5-31:10.11.6-11:10.11.6-21:10.11.7-2ubuntu1 Show 5 moreShow less 1:10.11.7-2ubuntu21:10.11.8-0ubuntu0.24.04.11:10.11.11-0ubuntu0.24.04.21:10.11.13-0ubuntu0.24.04.11:10.11.14-0ubuntu0.24.04.1	None known
`mysql-8.0` Ubuntu:24.04:LTS	before 8.0.46-0ubuntu0.24.04.5, plus listed versions 8.0.34-1ubuntu18.0.35-1ubuntu18.0.35-1ubuntu28.0.36-18.0.36-2ubuntu1 Show 17 moreShow less 8.0.36-2ubuntu28.0.36-2ubuntu38.0.37-0ubuntu0.24.04.18.0.39-0ubuntu0.24.04.18.0.39-0ubuntu0.24.04.28.0.40-0ubuntu0.24.04.18.0.41-0ubuntu0.24.04.18.0.42-0ubuntu0.24.04.18.0.42-0ubuntu0.24.04.28.0.43-0ubuntu0.24.04.18.0.43-0ubuntu0.24.04.28.0.44-0ubuntu0.24.04.18.0.44-0ubuntu0.24.04.28.0.45-0ubuntu0.24.04.18.0.46-0ubuntu0.24.04.28.0.46-0ubuntu0.24.04.38.0.46-0ubuntu0.24.04.4	8.0.46-0ubuntu0.24.04.5
`mariadb` Ubuntu:26.10	All versions, plus listed versions 1:11.8.6-51:11.8.8-11:11.8.9+ds-4ubuntu2	None known
`mysql-9.7` Ubuntu:26.10	before 9.7.4-0ubuntu0.26.10.1, plus listed versions 9.7.2-49.7.2-4ubuntu1	9.7.4-0ubuntu0.26.10.1
`mariadb` Ubuntu:26.04:LTS	All versions, plus listed versions 1:11.8.3-1build11:11.8.5-11:11.8.5-21:11.8.5-31:11.8.5-4 Show 5 moreShow less 1:11.8.6-11:11.8.6-31:11.8.6-41:11.8.6-51:11.8.6-5ubuntu0.1	None known
`mysql-8.4` Ubuntu:26.04:LTS	before 8.4.13-0ubuntu0.26.04.2, plus listed versions 8.4.6-0ubuntu38.4.7-0ubuntu28.4.7-0ubuntu38.4.8-0ubuntu18.4.9-0ubuntu0.26.04.18.4.10-0ubuntu0.26.04.18.4.11-0ubuntu0.26.04.1	8.4.13-0ubuntu0.26.04.2
`mysql-8.0` Ubuntu:22.04:LTS From an advisory covering 73 CVEs	before 8.0.46-0ubuntu0.22.04.5, plus listed versions 8.0.26-0ubuntu18.0.27-0ubuntu0.21.10.18.0.28-0ubuntu38.0.28-0ubuntu48.0.29-0ubuntu0.22.04.1 Show 26 moreShow less 8.0.29-0ubuntu0.22.04.28.0.29-0ubuntu0.22.04.38.0.30-0ubuntu0.22.04.18.0.31-0ubuntu0.22.04.18.0.32-0buntu0.22.04.18.0.32-0ubuntu0.22.04.28.0.33-0ubuntu0.22.04.18.0.33-0ubuntu0.22.04.28.0.33-0ubuntu0.22.04.48.0.34-0ubuntu0.22.04.18.0.35-0ubuntu0.22.04.18.0.36-0ubuntu0.22.04.18.0.37-0ubuntu0.22.04.38.0.39-0ubuntu0.22.04.18.0.40-0ubuntu0.22.04.18.0.41-0ubuntu0.22.04.18.0.42-0ubuntu0.22.04.18.0.42-0ubuntu0.22.04.28.0.43-0ubuntu0.22.04.18.0.43-0ubuntu0.22.04.28.0.44-0ubuntu0.22.04.18.0.44-0ubuntu0.22.04.28.0.45-0ubuntu0.22.04.18.0.46-0ubuntu0.22.04.28.0.46-0ubuntu0.22.04.38.0.46-0ubuntu0.22.04.4	8.0.46-0ubuntu0.22.04.5
`mysql-8.0` Ubuntu:24.04:LTS From an advisory covering 73 CVEs	before 8.0.46-0ubuntu0.24.04.5, plus listed versions 8.0.34-1ubuntu18.0.35-1ubuntu18.0.35-1ubuntu28.0.36-18.0.36-2ubuntu1 Show 17 moreShow less 8.0.36-2ubuntu28.0.36-2ubuntu38.0.37-0ubuntu0.24.04.18.0.39-0ubuntu0.24.04.18.0.39-0ubuntu0.24.04.28.0.40-0ubuntu0.24.04.18.0.41-0ubuntu0.24.04.18.0.42-0ubuntu0.24.04.18.0.42-0ubuntu0.24.04.28.0.43-0ubuntu0.24.04.18.0.43-0ubuntu0.24.04.28.0.44-0ubuntu0.24.04.18.0.44-0ubuntu0.24.04.28.0.45-0ubuntu0.24.04.18.0.46-0ubuntu0.24.04.28.0.46-0ubuntu0.24.04.38.0.46-0ubuntu0.24.04.4	8.0.46-0ubuntu0.24.04.5
`mysql-9.7` Ubuntu:26.10 From an advisory covering 73 CVEs	before 9.7.4-0ubuntu0.26.10.1, plus listed versions 9.7.2-49.7.2-4ubuntu1	9.7.4-0ubuntu0.26.10.1
`mysql-8.4` Ubuntu:26.04:LTS From an advisory covering 73 CVEs	before 8.4.13-0ubuntu0.26.04.2, plus listed versions 8.4.6-0ubuntu38.4.7-0ubuntu28.4.7-0ubuntu38.4.8-0ubuntu18.4.9-0ubuntu0.26.04.18.4.10-0ubuntu0.26.04.18.4.11-0ubuntu0.26.04.1	8.4.13-0ubuntu0.26.04.2

History

History
Recorded	Changed	Sources
Nov 12, 2026	affected, aliases, facts, references	OSV
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-101788 is a medium vulnerability (CVSS 5.9) in Oracle Corporation Mysql Cluster, published October 20, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.33%, the 25th percentile. Fixed in mysql-8.0 8.0.46-0ubuntu0.22.04.5.

References

Show 72 moreShow less