Internal service access via GraphQL asset fetch
Published Aug 11, 2026 · Updated Aug 11, 2026
SSRF in Craft CMS 4.0.0-RC1 through 4.18.1 and 5.0.0-RC1 through 5.10.5 allows remote authenticated users to read internal HTTP content. The saveAsset mutation fetches the supplied URL before its on_stats IP check, while validateIp() omits CGNAT and NAT64 ranges. A GraphQL token limited to asset creation is sufficient to issue internal GET requests, read permitted responses, and enumerate services by outcome and timing.
Summary
What happened
SSRF in Craft CMS 4.0.0-RC1 through 4.18.1 and 5.0.0-RC1 through 5.10.5 allows remote authenticated users to read internal HTTP content. The saveAsset mutation fetches the supplied URL before its on_stats IP check, while validateIp() omits CGNAT and NAT64 ranges. A GraphQL token limited to asset creation is sufficient to issue internal GET requests, read permitted responses, and enumerate services by outcome and timing.
The record
- CVE
- CVE-2026-72784
- Published
- Aug 11, 2026
- Updated
- Aug 11, 2026
- Vendor
- Pixel & Tonic
- Product
- Craft CMS
- Classifications
- T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 11, 2026CVE publishedPublication date reported by the CVE source.
- Aug 11, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=4.0.0-RC1 <4.18.2
- Affected versionversion=5.0.0-RC1 <5.10.6
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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