CVE-2023-46589: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

November 28, 2023 (updated January 5, 2024)

Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 does not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy.

Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.

References

lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxr
nvd.nist.gov/vuln/detail/CVE-2023-46589
www.openwall.com/lists/oss-security/2023/11/28/2

Code Behaviors & Features

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