CVE-2021-43608

Name: CVE-2021-43608
Creator: NVD / NIST
Published: 2021-12-09T20:15:07.937+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.37%

Last modified Jun 17, 2026

CVE-2021-43608 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Doctrine DBAL 3.x before 3.1.4 allows SQL Injection. The escaping of offset and length inputs to the generation of a LIMIT clause was not probably cast to an integer, allowing SQL injection to take place if application developers passed unescaped user input to the DBAL QueryBuilder or any other API that ultimately uses the AbstractPlatform::modifyLimitQuery API.. EPSS estimates a 2.37% chance of exploitation in the next 30 days.

Description

Doctrine DBAL 3.x before 3.1.4 allows SQL Injection. The escaping of offset and length inputs to the generation of a LIMIT clause was not probably cast to an integer, allowing SQL injection to take place if application developers passed unescaped user input to the DBAL QueryBuilder or any other API that ultimately uses the AbstractPlatform::modifyLimitQuery API.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.37%

81.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Doctrine-Project	Database Abstraction Layer	>= 3.0.0, < 3.1.4

References

https://github.com/doctrine/dbal/commit/9dcfa4cb6c03250b78a84737ba7ceb82f4b7ba4dPatch, Third Party Advisory
https://github.com/doctrine/dbal/releasesRelease Notes, Third Party Advisory
https://github.com/doctrine/dbal/security/advisories/GHSA-r7cj-8hjg-x622Third Party Advisory
https://www.doctrine-project.org/2021/11/11/dbal3-vulnerability-fixed.htmlVendor Advisory
https://github.com/doctrine/dbal/commit/9dcfa4cb6c03250b78a84737ba7ceb82f4b7ba4dPatch, Third Party Advisory
https://github.com/doctrine/dbal/releasesRelease Notes, Third Party Advisory
https://github.com/doctrine/dbal/security/advisories/GHSA-r7cj-8hjg-x622Third Party Advisory
https://www.doctrine-project.org/2021/11/11/dbal3-vulnerability-fixed.htmlVendor Advisory

Timeline

Published: Dec 9, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-43608?

How severe is CVE-2021-43608?

CVE-2021-43608 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.37% probability of exploitation in the next 30 days.

How do I fix CVE-2021-43608?

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-2021-43608?

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

Scan your code now

Source: NVD / NIST