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Publish GHSA-7cx3-6m66-7c5m

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advisory-database[bot]
2025-05-23 17:02:41 +00:00
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advisories/github-reviewed/2025/05/GHSA-7cx3-6m66-7c5m/GHSA-7cx3-6m66-7c5m.json
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{
"schema_version": "1.4.0",
"id": "GHSA-7cx3-6m66-7c5m",
"modified": "2025-05-16T14:12:40Z",
"modified": "2025-05-23T17:00:56Z",
"published": "2025-05-16T14:12:40Z",
"aliases": [
"CVE-2025-47287"
],
"summary": "Tornado vulnerable to excessive logging caused by malformed multipart form data",
"details": "### Summary\n\nWhen Tornado's ``multipart/form-data`` parser encounters certain errors, it logs a warning but continues trying to parse the remainder of the data. This allows remote attackers to generate an extremely high volume of logs, constituting a DoS attack. This DoS is compounded by the fact that the logging subsystem is synchronous.\n\n### Affected versions\n\nAll versions of Tornado prior to 6.5.0 are affected. The vulnerable parser is enabled by default.\n\n### Solution\n\nUpgrade to Tornado version 6.5. In the meantime, risk can be mitigated by blocking `Content-Type: multipart/form-data` in a proxy.",
"details": "### Summary\n\nWhen Tornado's ``multipart/form-data`` parser encounters certain errors, it logs a warning but continues trying to parse the remainder of the data. This allows remote attackers to generate an extremely high volume of logs, constituting a DoS attack. This DoS is compounded by the fact that the logging subsystem is synchronous.\n\n### Affected versions\n\nAll versions of Tornado prior to 6.5 are affected. The vulnerable parser is enabled by default.\n\n### Solution\n\nUpgrade to Tornado version 6.5. In the meantime, risk can be mitigated by blocking `Content-Type: multipart/form-data` in a proxy.",
"severity": [
{
"type": "CVSS_V3",
@@ -28,7 +28,7 @@
"introduced": "0"
},
{
"fixed": "6.5.0"
"fixed": "6.5"
}
]
}