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Tomcat used the same limit for both request parameters and parts in a multipart request. Since uploaded parts also include headers which must be retained, processing multipart requests can result in significantly more memory usage. A specially crafted request that used a large number of parts could trigger excessive memory usage leading to a DoS. The |
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Tomcat used the same limit for both request parameters and parts in a multipart request. Since uploaded parts also include headers which must be retained, processing multipart requests can result in significantly more memory usage. A specially crafted request that used a large number of parts could trigger excessive memory usage leading to a DoS. The maximum number of parts is now configurable (maxPartCount on the Connector) with a default of 10 parts. |
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maximum number of parts is now configurable (maxPartCount on the Connector) with a default of 10 parts. |