CVE-2026-34272
published 2026-04-21CVE-2026-34272: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 9.0.0-9.6.0. Easily…
PriorityP336medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
0.30%
22.3th percentile
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 9.0.0-9.6.0. Easily exploitable vulnerability allows low 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 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| oracle | mysql_server | 9.0.0 – 9.6.0 | — |
| oracle_corporation | mysql_server | 9.0.0 – 9.6.0 | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
vendor_redhat6.5MEDIUM
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GHSA
GHSA-3fhh-pgvh-2w97: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer)
ghsa_unreviewed·2026-04-21
CVE-2026-34272 [MEDIUM] CWE-400 GHSA-3fhh-pgvh-2w97: 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 9.0.0-9.6.0. Easily exploitable vulnerability allows low 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 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Red Hat
mysql: Optimizer unspecified vulnerability (CPU Apr 2026)
vendor_redhat·2026-04-21·CVSS 6.5
CVE-2026-34272 [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 9.0.0-9.6.0. Easily exploitable vulnerability allows low 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) - Not affected
Package: mysql (Red Hat Enterprise Linux 6) - Not affected
Package: my
No detection rules found.
No public exploits indexed.
2026-04-21
Published