CVE-2026-35240
published 2026-04-21CVE-2026-35240: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8…
PriorityP421medium4.9CVSS 3.1
AVNACLPRHUINSUCNINAH
EPSS
0.24%
15.3th percentile
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mysql_8.0 | mysql | — | — |
| mysql_8.4 | mysql | — | — |
| oracle | mysql | — | — |
| oracle | mysql_server | 8.0.0 – 8.0.45 | — |
| oracle | mysql_server | 8.4.0 – 8.4.8 | — |
| oracle | mysql_server | 9.0.0 – 9.6.0 | — |
| oracle_corporation | mysql_server | 8.0.0 – 8.0.45 | — |
| oracle_corporation | mysql_server | 8.4.0 – 8.4.8 | — |
| oracle_corporation | mysql_server | 9.0.0 – 9.6.0 | — |
| ubuntu | mysql-8.0 | — | — |
| ubuntu | mysql-8.4 | — | — |
CVSS provenance
nvdv3.14.9MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
vendor_redhat4.9MEDIUM
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Ubuntu
MySQL vulnerabilities
vendor_ubuntu·2026-06-03
CVE-2026-22005 MySQL vulnerabilities
Title: MySQL vulnerabilities
Summary: Several security issues were fixed in MySQL.
USN-8363-1 fixed several vulnerabilities in MySQL. This update
provides the corresponding fixes for MySQL on Ubuntu 20.04 LTS.
Original advisory details:
Multiple security issues were discovered in MySQL and this update includes
new upstream MySQL versions to fix these issues.
MySQL has been updated to 8.0.46 in Ubuntu 22.04 LTS and Ubuntu 24.04 LTS.
Ubuntu 25.10 and Ubuntu 26.04 LTS have been updated to MySQL 8.4.9.
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/8.0/en/news-8-0-46.html
https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4
Ubuntu
MySQL vulnerabilities
vendor_ubuntu·2026-06-02
CVE-2026-22015 MySQL vulnerabilities
Title: MySQL vulnerabilities
Summary: Several security issues were fixed in MySQL.
Multiple security issues were discovered in MySQL and this update includes
new upstream MySQL versions to fix these issues.
MySQL has been updated to 8.0.46 in Ubuntu 22.04 LTS and Ubuntu 24.04 LTS.
Ubuntu 25.10 and Ubuntu 26.04 LTS have been updated to MySQL 8.4.9.
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/8.0/en/news-8-0-46.html
https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-9.html
https://www.oracle.com/security-alerts/cpuapr2026.html
Instructions: This update uses a new upstream release, which includes additional bug
fixes.
Red Hat
mysql: Optimizer unspecified vulnerability (CPU Apr 2026)
vendor_redhat·2026-04-21·CVSS 4.9
CVE-2026-35240 [MEDIUM] CWE-770 mysql: Optimizer unspecified vulnerability (CPU Apr 2026)
mysql: Optimizer unspecified vulnerability (CPU Apr 2026)
Oracle CPU describes the issue as following: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Oracle MySQL Critical Patch Update.
Package: mysql8.4 (Red Hat Enterprise Linux 10) - Affected
Package: mysql (Red Hat Enterprise Linux 6)
VulDB
Oracle MySQL Server up to 8.0.45/8.4.8/9.6.0 Optimizer denial of service (Nessus ID 316818)
vuldb·2026-05-28·CVSS 4.9
CVE-2026-35240 [MEDIUM] Oracle MySQL Server up to 8.0.45/8.4.8/9.6.0 Optimizer denial of service (Nessus ID 316818)
A vulnerability was found in Oracle MySQL Server up to 8.0.45/8.4.8/9.6.0. It has been rated as problematic. This affects an unknown part of the component Optimizer. Performing a manipulation results in denial of service.
This vulnerability is identified as CVE-2026-35240. The attack can be initiated remotely. There is not any exploit available.
Upgrading the affected component is advised.
GHSA
GHSA-wj59-76w3-4fv9: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer)
ghsa_unreviewed·2026-04-21
CVE-2026-35240 [MEDIUM] CWE-284 GHSA-wj59-76w3-4fv9: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer)
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
No detection rules found.
No public exploits indexed.
2026-04-21
Published