CVE-2024-21507

Name: CVE-2024-21507
Creator: NVD / NIST
Published: 2024-04-10T05:15:48.29+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.74%

Last modified Jun 17, 2026

CVE-2024-21507 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Versions of the package mysql2 before 3.9.3 are vulnerable to Improper Input Validation through the keyFromFields function, resulting in cache poisoning. An attacker can inject a colon (:) character within a value of the attacker-crafted key.. EPSS estimates a 0.74% chance of exploitation in the next 30 days.

Description

Versions of the package mysql2 before 3.9.3 are vulnerable to Improper Input Validation through the keyFromFields function, resulting in cache poisoning. An attacker can inject a colon (:) character within a value of the attacker-crafted key.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.74%

50.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Sidorares	Mysql2	< 3.9.3

References

https://blog.slonser.info/posts/mysql2-attacker-configuration/Exploit, Permissions Required
https://github.com/sidorares/node-mysql2/commit/0d54b0ca6498c823098426038162ef10df02c818Patch
https://github.com/sidorares/node-mysql2/pull/2424Exploit, Issue Tracking
https://security.snyk.io/vuln/SNYK-JS-MYSQL2-6591300Exploit, Third Party Advisory
https://blog.slonser.info/posts/mysql2-attacker-configuration/Exploit, Permissions Required
https://github.com/sidorares/node-mysql2/commit/0d54b0ca6498c823098426038162ef10df02c818Patch
https://github.com/sidorares/node-mysql2/pull/2424Exploit, Issue Tracking
https://security.snyk.io/vuln/SNYK-JS-MYSQL2-6591300Exploit, Third Party Advisory

Timeline

Published: Apr 10, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-21507?

How severe is CVE-2024-21507?

CVE-2024-21507 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.74% probability of exploitation in the next 30 days.

How do I fix CVE-2024-21507?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-21507?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST