CVE-2024-7885

Undertow: improper state management in proxy protocol parsing causes information leakage

HIGH 7.5

At a glance

Source: NVD
EPSS: EPSS 2.64 % · percentile 86 (2026-10-28)
State: PUBLISHED
Published: 2024-08-21 14:13 UTC
Updated: 2026-10-08 10:55 UTC
Assigner: redhat
NVD status: Modified

Description

A vulnerability was found in Undertow where the ProxyProtocolReadListener reuses the same StringBuilder instance across multiple requests. This issue occurs when the parseProxyProtocolV1 method processes multiple requests on the same HTTP connection. As a result, different requests may share the same StringBuilder instance, potentially leading to information leakage between requests or responses. In some cases, a value from a previous request or response may be erroneously reused, which could lead to unintended data exposure. This issue primarily results in errors and connection termination but creates a risk of data leakage in multi-request environments.

Weaknesses (CWE)

CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization

References

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	redhat
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · secalert@redhat.com (Secondary)
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · nvd@nist.gov (Primary)

Advisories

GHSA-9623-mqmm-5rcf — Undertow vulnerable to Race Condition

European references

ENISA EUVD · EUVD-2024-2542
GCVE · GCVE-0-2024-7885

Affected configurations (NVD CPE)

cpe:2.3:a:redhat:build_of_apache_camel_-_hawtio:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:build_of_apache_camel_for_spring_boot:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:data_grid:8.0.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:integration_camel_k:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.0.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:jboss_enterprise_application_platform:8.0.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:jboss_fuse:7.0.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:process_automation:7.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*

Affected products

Product	Versions
undertow	affected 0 < 2.2.36.Final ; affected 2.3.0.Alpha1 < 2.3.17.Final
Red Hat · HawtIO 4.0.0 for Red Hat build of Apache Camel 4
Red Hat · Red Hat build of Apache Camel 3.20.7 for Spring Boot
Red Hat · Red Hat build of Apache Camel 4.4.2 for Spring Boot
Red Hat · Red Hat JBoss Enterprise Application Platform	unaffected 2.2.33.SP2-redhat-00001 < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7
Red Hat · Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7	unaffected 0:1.11.0-1.redhat_00001.1.el7eap < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7	unaffected 0:2.4.11-1.Final_redhat_00001.1.el7eap < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7	unaffected 0:1.7.2-19.Final_redhat_00020.1.el7eap < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7	unaffected 0:2.0.41-5.SP6_redhat_00001.1.el7eap < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7	unaffected 0:7.3.15-5.GA_redhat_00003.1.el7eap < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7	unaffected 0:2.10.4-4.redhat_00008.1.el7eap < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7	unaffected 0:2.10.4-4.redhat_00008.1.el7eap < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7	unaffected 0:2.10.4-6.redhat_00008.1.el7eap < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7	unaffected 0:2.10.4-4.redhat_00008.1.el7eap < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7	unaffected 0:2.10.4-6.redhat_00008.1.el7eap < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7	unaffected 0:2.10.4-3.redhat_00008.1.el7eap < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7	unaffected 0:1.7.2-20.Final_redhat_00021.1.el7eap < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7	unaffected 0:4.1.63-6.Final_redhat_00004.1.el7eap < *
Red Hat · Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7	unaffected 0:2.0.41-6.SP7_redhat_00001.1.el7eap < *

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD