What’s Vulnerable › Vulnerabilities

CVE-2026-25494: Craft has a SSRF in GraphQL Asset Mutation via Alternative IP Notation

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% 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 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 filter_var(..., FILTER_VALIDATE_IP) to block a specific list of IP addresses. However, alternative IP notations (hexadecimal, mixed) are not recognized by this function, allowing attackers to bypass the blocklist and access cloud metadata services. This issue is patched in versions 4.16.18 and 5.8.22.

Affected products

• craftcms cms: from 4.0.0 (excl.) before 4.16.18; from 5.0.0 (excl.) before 5.8.22; 4.0.0, 4.0.0-rc1, 4.0.0-rc2, 4.0.0-rc3, 5.0.0-rc1 — 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/d49e93e5ba0c48939ce5eaa6cd9b4a990542d8b2
• https://github.com/craftcms/cms/releases/tag/5.8.22
• https://github.com/craftcms/cms/security/advisories/GHSA-m5r2-8p9x-hp5m

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