GHSA-M5R2-8P9X-HP5M Craft CMS Vulnerable to SSRF in GraphQL Asset Mutation via Alternative IP Notation

I observed a recent commit intended to mitigate Server-Side Request Forgery SSRF vulnerabilities. While the implemented defense mechanisms are an improvement, I have identified two methods to bypass these protections. This report details the first bypass method involving alternative IP notation,...

Server-side Request Forgery (SSRF)

Overview craftcms/cms is a content management system. Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the saveAsset mutation in GraphQL when alternative IP notations are used in the URL parameter. An attacker can access internal cloud metadata services by...

CVE-2026-25494

Craft is a platform for creating digital experiences. In Craft versions 4.0.0-RC1 through 4.16.17 and 5.0.0-RC1 through 5.8.21, the saveAsset GraphQL mutation uses filtervar..., FILTERVALIDATEIP to block a specific list of IP addresses. However, alternative IP notations hexadecimal, mixed are not...

PT-2026-7144

Name of the Vulnerable Software and Affected Versions Craft versions 4.0.0-RC1 through 4.16.17 Craft versions 5.0.0-RC1 through 5.8.21 Description The saveAsset GraphQL mutation in Craft does not properly validate IP addresses used to access cloud metadata services. The application uses filter...