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CVE-2026-46870 Oracle Corporation CVE debrief

A high-severity vulnerability was discovered in MySQL Shell, a component of Oracle MySQL. The vulnerability, tracked as CVE-2026-46870, has a CVSS score of 8.5 and allows a low-privileged attacker with network access to compromise MySQL Shell. This difficult-to-exploit vulnerability can result in takeover of MySQL Shell and may significantly impact additional products. Administrators and users of MySQL Shell should be aware of this vulnerability and take necessary precautions.

Vendor
Oracle Corporation
Product
MySQL Shell
CVSS
HIGH 8.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-06-22
Advisory published
2026-06-17
Advisory updated
2026-06-22

Who should care

Administrators and users of MySQL Shell, particularly those with low-privileged access, should be aware of this vulnerability and take necessary precautions to prevent exploitation. This includes reviewing and updating access controls, restricting network access, and monitoring for suspicious activity.

Technical summary

The vulnerability is located in the MySQL Shell product of Oracle MySQL, specifically in the Shell for VS Code component. The supported version affected is 2026.2.0+9.6.1. This difficult-to-exploit vulnerability allows a low-privileged attacker with network access via multiple protocols to compromise MySQL Shell. While the vulnerability is in MySQL Shell, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of MySQL Shell.

Defensive priority

High priority should be given to patching or mitigating this vulnerability, as it has a high CVSS score and could lead to significant impact if exploited.

Recommended defensive actions

  • Apply the latest security patches for MySQL Shell
  • Restrict network access to MySQL Shell
  • Monitor for suspicious activity
  • Implement compensating controls
  • Review and update access controls
  • Conduct a thorough review of the affected system
  • Verify the integrity of the system and data

Evidence notes

The CVE record was published on 2026-06-17T10:54:04.697Z and was last modified on 2026-06-22T15:09:46.333Z. The NVD entry is currently Analyzed. This information is based on the NVD entry and the CVE record. The vulnerability affects MySQL Shell, a component of Oracle MySQL, specifically the Shell for VS Code. The supported version affected is 2026.2.0+9.6.1. Defenders should verify the affected scope and vendor guidance.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-46870 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-46870

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-46870 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-46870

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.