What’s Vulnerable › Vulnerabilities

CVE-2026-25492: Craft has a save_images_Asset graphql mutation can be abused to exfiltrate AWS credentials of underlying host

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-02-09 · updated 2026-06-17
• Weakness: CWE-918

Description

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.

Affected products

• craftcms cms: from 3.5.0 before 4.16.18; from 5.0.0 before 5.8.22 — fixed in 4.16.18, 5.8.22

How to fix

Upgrade to a fixed version: craftcms cms 4.16.18, 5.8.22. Check the vendor advisory for mitigations.

References

• https://github.com/craftcms/cms/commit/e838a221df2ab15cd54248f22fc8355d47df29ff
• https://github.com/craftcms/cms/releases/tag/5.8.22
• https://github.com/craftcms/cms/security/advisories/GHSA-96pq-hxpw-rgh8

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