CVE-2016-8745 – org.apache.tomcat:tomcat-util

Package

Manager: maven
Name: org.apache.tomcat:tomcat-util
Vulnerable Version: >=9.0.0.m1 <9.0.0.m14 || >=8.5.0 <8.5.9 || >=8.0.0-rc1 <8.0.41 || >=7.0.0 <7.0.75 || >=6.0.16 <6.0.50

Severity

Level: High

CVSS v3.1: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS: 0.1738 pctl0.94808

Details

Concurrent Execution using Shared Resource with Improper Synchronization in Apache Tomcat A bug in the error handling of the send file code for the NIO HTTP connector in Apache Tomcat 9.0.0.M1 to 9.0.0.M13, 8.5.0 to 8.5.8, 8.0.0.RC1 to 8.0.39, 7.0.0 to 7.0.73 and 6.0.16 to 6.0.48 resulted in the current Processor object being added to the Processor cache multiple times. This in turn meant that the same Processor could be used for concurrent requests. Sharing a Processor can result in information leakage between requests including, not not limited to, session ID and the response body. The bug was first noticed in 8.5.x onwards where it appears the refactoring of the Connector code for 8.5.x onwards made it more likely that the bug was observed. Initially it was thought that the 8.5.x refactoring introduced the bug but further investigation has shown that the bug is present in all currently supported Tomcat versions.

Metadata

Created: 2022-05-14T01:10:16Z
Modified: 2025-09-02T22:30:26Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-w3j5-q8f2-3cqq/GHSA-w3j5-q8f2-3cqq.json
CWE IDs: ["CWE-362"]
Alternative ID: GHSA-w3j5-q8f2-3cqq
Finding: F124
Auto approve: 1