Vulnerability · Published Oct 21, 2026 · Assigned by redhat

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

Low 3.7

In plain English

A low-severity path traversal in Red Hat build of Apache Camel for Spring Boot 4 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities).

Severity (CVSS 3.1)3.7Low
Exploit odds (30 days)0.3%top 74.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:14undertowno fix listedDEBIAN-CVE-2026-114370
Ubuntu:26.04:LTSundertowno fix listedUBUNTU-CVE-2026-114370
Ubuntu:26.10undertowno fix listedUBUNTU-CVE-2026-114370

Affected products (as reported)

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

References