CVE-2026-25494 Craft has a SSRF in GraphQL Asset Mutation via Alternative IP Notation
Attackers can bypass IP blocklists in Craft CMS GraphQL mutations using alternative IP notations to access cloud metadata services.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-25494?
CVE-2026-25494 is a medium-severity server-side request forgery vulnerability in Craftcms Craft Cms, published on 9 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-918
Which versions are affected by CVE-2026-25494?
4 open source packages ship an affected version, including craftcms/cms. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
craftcms/cms Packagist | From 4.0.0-RC1 | 4.16.18 |
craftcms/cms Packagist | From 4.0.0-RC1 | 4.16.18 |
craftcms/cms Packagist | From 5.0.0-RC1 | 5.8.22 |
craftcms/cms Packagist | From 5.0.0-RC1 | 5.8.22 |
Products include Craftcms Craft Cms.
How do I fix CVE-2026-25494?
Upgrade craftcms/cms to a fixed version for your release line: 4.16.18 or 5.8.22.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-25494 being exploited?
There is no known exploitation of CVE-2026-25494 in the wild and no public exploit code.
Other vulnerabilities in Craftcms Craft Cms
Sources
Also known as GHSA-m5r2-8p9x-hp5m.