What is CVE-2024-21507?

CVE-2024-21507 is a medium-severity vulnerability in Sidorares Mysql2, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2024-04-10.

How severe is CVE-2024-21507?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Improper input validation in Sidorares Mysql2

CVE-2024-21507

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2024-04-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.

EPSS exploit prediction

EPSS: 0.007 (53.2th percentile), scored 2026-10-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Sidorares Mysql2
Mysql2 — versions 0

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

security.snyk.io/vuln/SNYK-JS-MYSQL2-6591300 (Exploit, Third Party Advisory)
github.com/sidorares/node-mysql2/commit/0d54b0ca6498c823098426038162ef10df02c818 (Patch)
blog.slonser.info/posts/mysql2-attacker-configuration/ (Permissions Required, Exploit)
github.com/sidorares/node-mysql2/pull/2424 (Exploit, Issue Tracking)

Frequently asked questions

What is CVE-2024-21507?: CVE-2024-21507 is a medium-severity vulnerability in Sidorares Mysql2, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2024-04-10.
How severe is CVE-2024-21507?: Medium severity. CVSS v3 base score is 6.5 out of 10.