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VulnerabilityPublished Updated

CVE-2026-47052: Oracle MySQL Server · Uncontrolled Resource Consumption

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
0.4% chance of exploitation in 30 days – higher than 39% 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 Jul 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
  • =8.4.0-8.4.10
  • =9.7.0-9.7.1
Fixed in–
Oracle CorporationMySQL ClusterAffected
  • =8.0.0-8.0.47
  • =8.4.0-8.4.10
  • =9.7.0-9.7.1
Fixed in–
Mavencom.oracle/mysql-serverpkg:maven/com.oracle/mysql-serverOther threatsAffected
  • >=8.4.0 <=8.4.10
  • >=9.7.0 <=9.7.1
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's July 2026 Critical Patch Update advisory recommends applying security patches without delay for supported products. However, the advisory does not explicitly confirm patch availability or remediation status for this specific vulnerability in the affected MySQL versions. Until a patch is confirmed and applied, restrict network access to MySQL Server and Cluster instances to trusted users with high privileges to reduce exposure.

Description

CVE-2026-47052 is a medium severity vulnerability in Oracle MySQL Server and MySQL Cluster affecting specific versions. It allows a high privileged attacker with network access via multiple protocols to cause a hang or repeated crash, resulting in a denial of service (DoS). The vulnerability impacts availability but does not affect confidentiality or integrity. Affected versions include MySQL Server 8.4.0 through 8.4.10 and 9.7.0 through 9.7.1, as well as MySQL Cluster 8.0.0 through 8.0.47, 8.4.0 through 8.4.10, and 9.7.0 through 9.7.1. Oracle has published a Critical Patch Update advisory referencing this vulnerability but does not explicitly confirm patch availability or remediation status for these versions. No known exploits are reported in the wild at this time.

References

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