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MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTR2d3ctbWM2Ni02Mm02

Moderate EPSS: 0.02506% (0.84697 Percentile) EPSS:

HTTP Request Smuggling in Apache Tomcat

Affected Packages Affected Versions Fixed Versions
maven:org.apache.tomcat:tomcat >= 8.5.0, < 8.5.68, >= 9.0.0-M1, < 9.0.48, >= 10.0.0-M1, < 10.0.7 8.5.68, 9.0.48, 10.0.7
30 Dependent packages
438 Dependent repositories

Affected Version Ranges

All affected versions

8.5.0, 8.5.2, 8.5.3, 8.5.4, 8.5.5, 8.5.6, 8.5.8, 8.5.9, 8.5.11, 8.5.12, 8.5.13, 8.5.14, 8.5.15, 8.5.16, 8.5.19, 8.5.20, 8.5.21, 8.5.23, 8.5.24, 8.5.27, 8.5.28, 8.5.29, 8.5.30, 8.5.31, 8.5.32, 8.5.33, 8.5.34, 8.5.35, 8.5.37, 8.5.38, 8.5.39, 8.5.40, 8.5.41, 8.5.42, 8.5.43, 8.5.45, 8.5.46, 8.5.47, 8.5.49, 8.5.50, 8.5.51, 8.5.53, 8.5.54, 8.5.55, 8.5.56, 8.5.57, 8.5.58, 8.5.59, 8.5.60, 8.5.61, 8.5.63, 8.5.64, 8.5.65, 8.5.66, 9.0.1, 9.0.2, 9.0.4, 9.0.5, 9.0.6, 9.0.7, 9.0.8, 9.0.10, 9.0.11, 9.0.12, 9.0.13, 9.0.14, 9.0.16, 9.0.17, 9.0.19, 9.0.20, 9.0.21, 9.0.22, 9.0.24, 9.0.26, 9.0.27, 9.0.29, 9.0.30, 9.0.31, 9.0.33, 9.0.34, 9.0.35, 9.0.36, 9.0.37, 9.0.38, 9.0.39, 9.0.40, 9.0.41, 9.0.43, 9.0.44, 9.0.45, 9.0.46, 10.0.0, 10.0.0-M1, 10.0.0-M3, 10.0.0-M4, 10.0.0-M5, 10.0.0-M6, 10.0.0-M7, 10.0.0-M8, 10.0.0-M9, 10.0.0-M10, 10.0.2, 10.0.4, 10.0.5, 10.0.6

All unaffected versions

7.0.35, 7.0.37, 7.0.39, 7.0.40, 7.0.41, 7.0.42, 7.0.47, 7.0.50, 7.0.52, 7.0.53, 7.0.54, 7.0.55, 7.0.56, 7.0.57, 7.0.59, 7.0.61, 7.0.62, 7.0.63, 7.0.64, 7.0.65, 7.0.67, 7.0.68, 7.0.69, 7.0.70, 7.0.72, 7.0.73, 7.0.75, 7.0.76, 7.0.77, 7.0.78, 7.0.79, 7.0.81, 7.0.82, 7.0.84, 7.0.85, 7.0.86, 7.0.88, 7.0.90, 7.0.91, 7.0.92, 7.0.93, 7.0.94, 7.0.96, 7.0.99, 7.0.100, 7.0.103, 7.0.104, 7.0.105, 7.0.106, 7.0.107, 7.0.108, 7.0.109, 8.0.1, 8.0.3, 8.0.5, 8.0.8, 8.0.9, 8.0.11, 8.0.12, 8.0.14, 8.0.15, 8.0.17, 8.0.18, 8.0.20, 8.0.21, 8.0.22, 8.0.23, 8.0.24, 8.0.26, 8.0.27, 8.0.28, 8.0.29, 8.0.30, 8.0.32, 8.0.33, 8.0.35, 8.0.36, 8.0.37, 8.0.38, 8.0.39, 8.0.41, 8.0.42, 8.0.43, 8.0.44, 8.0.45, 8.0.46, 8.0.47, 8.0.48, 8.0.49, 8.0.50, 8.0.51, 8.0.52, 8.0.53, 8.5.68, 8.5.69, 8.5.70, 8.5.71, 8.5.72, 8.5.73, 8.5.75, 8.5.76, 8.5.77, 8.5.78, 8.5.79, 8.5.81, 8.5.82, 8.5.83, 8.5.84, 8.5.85, 8.5.86, 8.5.87, 8.5.88, 8.5.89, 8.5.90, 8.5.91, 8.5.92, 8.5.93, 8.5.94, 8.5.95, 8.5.96, 8.5.97, 8.5.98, 8.5.99, 8.5.100, 9.0.48, 9.0.50, 9.0.52, 9.0.53, 9.0.54, 9.0.55, 9.0.56, 9.0.58, 9.0.59, 9.0.60, 9.0.62, 9.0.63, 9.0.64, 9.0.65, 9.0.67, 9.0.68, 9.0.69, 9.0.70, 9.0.71, 9.0.72, 9.0.73, 9.0.74, 9.0.75, 9.0.76, 9.0.78, 9.0.79, 9.0.80, 9.0.81, 9.0.82, 9.0.83, 9.0.84, 9.0.85, 9.0.86, 9.0.87, 9.0.88, 9.0.89, 9.0.90, 9.0.91, 9.0.93, 9.0.94, 9.0.95, 9.0.96, 9.0.97, 9.0.98, 10.0.7, 10.0.8, 10.0.10, 10.0.11, 10.0.12, 10.0.13, 10.0.14, 10.0.16, 10.0.17, 10.0.18, 10.0.20, 10.0.21, 10.0.22, 10.0.23, 10.0.26, 10.0.27, 10.1.0, 10.1.1, 10.1.2, 10.1.4, 10.1.5, 10.1.6, 10.1.7, 10.1.8, 10.1.9, 10.1.10, 10.1.11, 10.1.12, 10.1.13, 10.1.14, 10.1.15, 10.1.16, 10.1.17, 10.1.18, 10.1.19, 10.1.20, 10.1.23, 10.1.24, 10.1.25, 10.1.26, 10.1.28, 10.1.29, 10.1.30, 10.1.31, 10.1.33, 10.1.34, 11.0.0, 11.0.1, 11.0.2

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: