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VulnerabilityPublished

CVE-2026-35234: Oracle MySQL Server · Improper Access Control

Affects Oracle MySQL ServerSource CVE Database V5

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Not known to be exploited · CVSS 4.9 Medium.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
4.9Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 22% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Oracle CorporationMySQL ServerAffected
  • >=9.0.0 <=9.6.0
Fixed in–
Mavencom.oracle/mysql-serverpkg:maven/com.oracle/mysql-serverOther threatsAffected
  • =9.0.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Oracle has released patches for this vulnerability as part of the April 2026 Critical Patch Update. Customers should apply the relevant patches for MySQL Server versions 9.0.0 through 9.6.0 without delay. Oracle strongly recommends remaining on actively supported versions and promptly applying Critical Patch Updates to mitigate this and other vulnerabilities. Patch status is confirmed by the vendor advisory. No alternative mitigations or workarounds are specified.

Description

CVE-2026-35234 is a vulnerability in Oracle MySQL Server versions 9.0.0 through 9.6.0 affecting the Server: Partition component. It allows a high privileged attacker with network access via multiple protocols to cause a denial of service by hanging or repeatedly crashing the MySQL Server. The vulnerability has a CVSS 3.1 base score of 4.9, indicating a medium severity with impact limited to availability. Oracle has included this vulnerability in its April 2026 Critical Patch Update advisory, which addresses numerous security issues across Oracle products.

References

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