CVE-2024-52317: Apache Tomcat: Request/response mix-up with HTTP/2

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-11-18 · updated 2026-06-17
Weakness: CWE-326

Description

Incorrect object re-cycling and re-use vulnerability in Apache Tomcat. Incorrect recycling of the request and response used by HTTP/2 requests could lead to request and/or response mix-up between users. This issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.0-M26, from 10.1.27 through 10.1.30, from 9.0.92 through 9.0.95. Users are recommended to upgrade to version 11.0.0, 10.1.31 or 9.0.96, which fixes the issue.

Affected products

Apache Tomcat: from 9.0.92 before 9.0.96; from 10.1.27 before 10.1.31; 11.0.0-milestone23, 11.0.0-milestone24, 11.0.0-milestone25, 11.0.0-milestone26 — fixed in 10.1.31, 9.0.96

How to fix

Upgrade to a fixed version: Apache Tomcat 10.1.31, 9.0.96. Check the vendor advisory for mitigations.

References

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