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HistoryAug 13, 2021 - 3:21 p.m.

HTTP Request Smuggling in Apache Tomcat

2021-08-1315:21:14
Google
osv.dev
230

0.123 Low

EPSS

Percentile

95.4%

Apache Tomcat 10.0.0-M1 to 10.0.6, 9.0.0.M1 to 9.0.46 and 8.5.0 to 8.5.66 did not correctly parse the HTTP transfer-encoding request header in some circumstances leading to the possibility to request smuggling when used with a reverse proxy. Specifically: - Tomcat incorrectly ignored the transfer encoding header if the client declared it would only accept an HTTP/1.0 response; - Tomcat honoured the identify encoding; and - Tomcat did not ensure that, if present, the chunked encoding was the final encoding.

References