SQL Injection Vulnerability in Craft CMS by Pixel & Tonic
CVE-2026-123491

8.8HIGH

Key Information:

Vendor

Craftcms

Status
Cms
Vendor
CVE Published:
6 November 2026

What is CVE-2026-123491?

Craft CMS versions 4.0.0 prior to 4.18.9 and 5.0.0 prior to 5.11.2 are vulnerable to an SQL injection attack via GraphQL eager-loading. This vulnerability allows unauthenticated attackers to input malicious parenthesized select arguments, which are improperly handled. As a result, SQL expressions may be injected, enabling unauthorized access to sensitive database contents, including password hashes and session tokens. Implementing the latest updates and ensuring proper input validation are crucial for mitigating this risk.

Affected Version(s)

cms 4.0.0 < 4.18.9

cms 5.0.0 < 5.11.2

cms 4.18.9

References

https://github.com/craftcms/cms/security/advisories/GHSA-...
vendor-advisory
https://www.vulncheck.com/advisories/craft-cms-4.0.0-befo...
third-party-advisory

CVSS V4

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Crypto-Cat
.