CVE-2026-25492
MEDIUM
GHSA-96pq-hxpw-rgh8
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
4Description
Craft CMS is a content management system. In Craft versions 3.5.0 through 4.16.17 and 5.0.0-RC1 through 5.8.21, the save_images_Asset GraphQL mutation can be abused to fetch internal URLs by providing a domain name that resolves to an internal IP address, bypassing hostname validation. When a non-image file extension such as .txt is allowed, downstream image validation is bypassed, which can allow an authenticated attacker with permission to use save_images_Asset to retrieve sensitive data such as AWS instance metadata credentials from the underlying host. This issue is patched in versions 4.16.18 and 5.8.22.
Analysis
Craft CMS versions 3.5.0-4.16.17 and 5.0.0-RC1-5.8.21 contain a server-side request forgery vulnerability in the save_images_Asset GraphQL mutation that allows authenticated users to bypass hostname validation and retrieve internal URLs by specifying domains resolving to private IP addresses. By uploading files with non-image extensions like .txt, attackers can bypass downstream validation to access sensitive data including AWS instance metadata credentials from the host system. …
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Remediation
Within 30 days: Identify affected systems running Craft and apply vendor patches as part of regular patch cycle. Vendor patch is available.
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External POC / Exploit Code
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