# CVE-2026-114370: Undertow: undertow: pathresourcemanager safepaths check allows sibling-directory symlink traversal

Status: published. Published: 2026-10-21. Updated: 2026-11-03.

A flaw was found in the PathResourceManager component of the Undertow web server. This component is responsible for serving static files from the file system. The issue occurs because the mechanism used to verify if a symbolic link points to a safe location only checks if the target path starts with a specific string, without ensuring it matches a full directory name. This could allow an attacker to access files in a sibling directory if that directorys name starts with the same characters as an authorized safe directory.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Red Hat / Red Hat build of Apache Camel for Spring Boot 4 (undertow-servlet): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (pki-core:10.6/resteasy): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (pki-deps:10.6/resteasy): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (resteasy): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Fuse 7 (undertow-servlet): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7 (jboss-eap-7/eap74-els-openjdk11-openshift-rhel8): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7 (jboss-eap-7/eap74-els-openjdk17-openshift-rhel8): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7 (jboss-eap-7/eap74-els-openjdk8-openshift-rhel8): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7 (undertow-servlet): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8 (undertow-servlet): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform Expansion Pack (undertow-servlet): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Single Sign-On 7 (undertow-servlet): Version range not reported. Source: CNA: redhat

## Severity and prioritization

- CVSS 3.1: 3.7 (low); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N; source: CNA: redhat

- CISA KEV: No listing in collected sources

- EPSS: 0.32% as of 2026-11-03; percentile 25.39%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-22

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/security/cve/CVE-2026-114370 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2528757 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2026-114370; retrieved 2026-11-03; source updated 2026-11-03

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-114370; retrieved 2026-11-03; source updated Not reported

Revision: ff8ed26a6a0ebeb86d1499dd9429633a4015b0bdf4678bb2cb1638f508f903f8

Canonical: https://y2.dev/cve/CVE-2026-114370

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