HOME VULNERABILITIESCVE-2021-43608

CRITICAL

CVE-2021-43608

CWE-89Published: December 9, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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.

Technical Analysis

CVE-2021-43608 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-89): SQL injection vulnerabilities allow attackers to manipulate database queries, potentially exposing or modifying sensitive data.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected Vendors & Products

doctrine-project1 product(s)

database abstraction layer

Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/doctrine/dbal/commit/9dcfa4cb6c03250b78a84737ba7ceb82f4b7ba4d

PATCHhttps://github.com/doctrine/dbal/commit/9dcfa4cb6c03250b78a84737ba7ceb82f4b7ba4d

ADVISORYhttps://github.com/doctrine/dbal/releases

ADVISORYhttps://github.com/doctrine/dbal/security/advisories/GHSA-r7cj-8hjg-x622

ADVISORYhttps://www.doctrine-project.org/2021/11/11/dbal3-vulnerability-fixed.html

ADVISORYhttps://github.com/doctrine/dbal/releases

ADVISORYhttps://github.com/doctrine/dbal/security/advisories/GHSA-r7cj-8hjg-x622

ADVISORYhttps://www.doctrine-project.org/2021/11/11/dbal3-vulnerability-fixed.html

All References (8)

→

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

Quick Facts

CVE IDCVE-2021-43608

CVSS Score9.8 / 10

SeverityCRITICAL

WeaknessCWE-89

CISA KEVNo

Affected1 vendor(s)

PublishedDec 9, 2021

Related CVEs (CWE-89)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2021-43608 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

← All Vulnerabilities·Search for CVE-2021-43608·NVD