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CVE-2024-21508 — Vulnerability in mysql2 — CVE Details

CRITICAL

mysql2 Remote Code Execution (RCE) via the readCodeFor function

Published April 11, 2024Updated September 10, 2026Source: osv

Summary

Versions of the package mysql2 before 3.9.4 are vulnerable to Remote Code Execution (RCE) via the `readCodeFor` function due to improper validation of the `supportBigNumbers` and `bigNumberStrings` values.

Advisory Timeline

  • First published April 11, 2024 (914 days ago).
  • Last revised September 10, 2026 — 882 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

npm
Update mysql2 to 3.9.4 or later
npm install mysql2@3.9.4

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: npm (1).

PackageEcosystemAffectedFixed In
mysql2
npm
All versions3.9.4

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2024-21508?
mysql2 Remote Code Execution (RCE) via the readCodeFor function This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2024-21508?
CVE-2024-21508 affects mysql2. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2024-21508 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-fpw7-j2hg-69v5

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