CVE-2023-46589

High

Description

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 did 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. Older, EOL versions may also be affected. 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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductApache Tomcat
PublishedNov 28, 2023
First seenNov 28, 2023
Weakness typeCWE-444CWE-444

How to fix

Update
  • apache tomcat8.5.96, 9.0.83, 10.1.16 or later
  • org.apache.tomcat:tomcat-catalina11.0.0-M11, 10.1.16, 9.0.83, 8.5.96 or later
  • org.apache.tomcat.embed:tomcat-embed-core11.0.0-M11, 10.1.16, 9.0.83, 8.5.96 or later
  • org.apache.tomcat:tomcat-coyote11.0.0-M11 or later

Affected products

ProductAffected versionsFixed in
apache tomcat8.5.0 ≤ v < 8.5.96, 9.0.0 ≤ v < 9.0.83, 10.1.0 ≤ v < 10.1.16, 11.0.08.5.96, 9.0.83, 10.1.16
org.apache.tomcat:tomcat-catalinaMaven11.0.0-M1 ≤ v < 11.0.0-M11, 10.1.0-M1 ≤ v < 10.1.16, 9.0.0-M1 ≤ v < 9.0.83, 8.5.0 ≤ v < 8.5.9611.0.0-M11, 10.1.16, 9.0.83, 8.5.96
org.apache.tomcat.embed:tomcat-embed-coreMaven11.0.0-M1 ≤ v < 11.0.0-M11, 10.1.0-M1 ≤ v < 10.1.16, 9.0.0-M1 ≤ v < 9.0.83, 8.5.0 ≤ v < 8.5.9611.0.0-M11, 10.1.16, 9.0.83, 8.5.96
org.apache.tomcat:tomcat-coyoteMaven11.0.0-M1 ≤ v < 11.0.0-M1111.0.0-M11

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