Skip to content
CVE PROGRAM SOURCE RECORDUnscored

CVE-2021-33037

Incorrect Transfer-Encoding handling with HTTP/1.0

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
apache

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Apache Software Foundation Apache Tomcat

  • Apache Tomcat 10 10.0.0-M1 to 10.0.6affected
  • Apache Tomcat 9 9.0.0.M1 to 9.0.46affected
  • Apache Tomcat 8 8.5.0 to 8.5.66affected

References