6.9

CVSS Score

4.0

-

CVSS Score

Basic Information

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CVE-2026-25493

CVE-2026-25493: Craft has a SSRF in GraphQL Asset Mutation via HTTP Redirect

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 validates the initial URL hostname and resolved IP against a blocklist, but Guzzle follows HTTP redirects by default. An attacker can bypass all SSRF protections by hosting a redirect that points to cloud metadata endpoints or any internal IP addresses. This issue is patched in versions 4.16.18 and 5.8.22.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2026-25493

CVE-2026-25493:

6.9

CVSS Score

4.0

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
craftcms/cms	composer	>= 5.0.0-RC1, <= 5.8.21	5.8.22
craftcms/cms	composer	>= 4.0.0-RC1, <= 4.16.17	4.16.18

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability exists in the saveAsset GraphQL mutation, which allows saving an asset from a remote URL. The analysis of the provided patch commit 0974055634af68998f67850ab2045d8aaa19fa98 reveals that the root cause of the SSRF vulnerability lies within the handleUpload method of the craft\gql\resolvers\mutations\Asset class. This method uses the Guzzle HTTP client to download the file from the user-supplied URL. The vulnerability description correctly points out that Guzzle follows HTTP redirects by default. The patch confirms this by adding RequestOptions::ALLOW_REDIRECTS => false to the Guzzle request configuration within the handleUpload function. This change prevents the client from following any redirects, thereby mitigating the SSRF risk. Therefore, the handleUpload function is the specific location where the vulnerable code existed and was subsequently patched.

Vulnerable functions

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Vulnerability Intelligence
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WAF Rule

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Reasoning

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