Asset denial via unconsumed S3 response streams
Published Mar 26, 2025 · Updated Mar 26, 2025
Denial of service in Directus 9.22.0 and later before 11.5.0 allows remote attackers to block S3-backed assets via malformed transforms. In asset transformation handling, Sharp rejects invalid dimensions before the S3 response stream is consumed, leaving NodeHttpHandler sockets occupied until the configured socket pool is exhausted. The instance must use S3 storage and expose an asset identifier; a concurrent burst then makes assets return HTTP 403 for public and administrative policies.
Summary
What happened
Denial of service in Directus 9.22.0 and later before 11.5.0 allows remote attackers to block S3-backed assets via malformed transforms. In asset transformation handling, Sharp rejects invalid dimensions before the S3 response stream is consumed, leaving NodeHttpHandler sockets occupied until the configured socket pool is exhausted. The instance must use S3 storage and expose an asset identifier; a concurrent burst then makes assets return HTTP 403 for public and administrative policies.
The record
- CVE
- CVE-2025-30225
- Published
- Mar 26, 2025
- Updated
- Mar 26, 2025
- Vendor
- Directus
- Product
- Directus
- Classifications
- CWE-770, T1499.003
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 26, 2025CVE publishedPublication date reported by the CVE source.
- Mar 26, 2025Record 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=>= 9.22.0, < 11.5.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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
- GHSA-j8xj-7jff-46mx reproduction scriptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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