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CVE-2026-114370

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

3.7 Low

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
None

Exploit likelihood

0.32%Unchanged since Oct 22, 2026
90%50%10%1%

What each source reports

CVE List Score used 3.7

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

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.

Record
CVE-2026-114370
CVSS 3.1
3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-22
Updated
2026-11-06
EUVDEUVD-2026-107307 3.7

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.

Record
EUVD-2026-107307
CVSS 3.1
3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-06
GitHub AdvisoriesGHSA-fg56-q742-gmvf 3.7

A flaw was found in the PathResourceManager component of the Undertow web server. This component...

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.

Record
GHSA-fg56-q742-gmvf
CVSS 3.1
3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-22
Updated
2026-11-02
NVD 3.7

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.

Record
CVE-2026-114370
CVSS 3.1
3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-22
Updated
2026-11-06
OSVDEBIAN-CVE-2026-114370 3.7

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.

Record
DEBIAN-CVE-2026-114370
CVSS 3.1
3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-07
OSVUBUNTU-CVE-2026-114370 3.7

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.

Record
UBUNTU-CVE-2026-114370
CVSS 3.1
3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
undertow
Debian:14
All versions, plus listed versions
1.3.11-11.3.16-11.3.19-11.3.21-11.3.23-1
Show 45 moreShow less
1.3.4-11.3.5-11.3.7-11.4.0-11.4.1-11.4.18-11.4.20-11.4.21-11.4.21-21.4.22-11.4.23-11.4.23-21.4.23-31.4.25-11.4.25-21.4.3-11.4.4-11.4.6-11.4.7-11.4.8-12.0.23-12.0.25-12.0.26-12.0.27-12.0.28-12.0.29-12.0.30-12.1.0-12.1.1-12.1.3-12.2.0-12.2.10-12.2.12-12.2.13-12.2.14-12.2.16-12.2.17-12.2.18-12.2.19-12.2.2-12.2.20-12.2.21-12.2.3-12.2.4-12.2.5-1
None known
undertow
Ubuntu:Pro:16.04:LTS
All versions, plus listed versions
1.3.4-11.3.5-11.3.7-11.3.11-11.3.16-11.3.16-1ubuntu0.1~esm1
None known
undertow
Ubuntu:Pro:18.04:LTS
All versions, plus listed versions
1.4.20-11.4.21-11.4.22-11.4.23-11.4.23-2build11.4.23-31.4.23-3ubuntu0.1~esm1
None known
undertow
Ubuntu:Pro:20.04:LTS
All versions, plus listed versions
2.0.23-12.0.27-12.0.28-12.0.29-12.0.29-1ubuntu0.1~esm1
None known
undertow
Ubuntu:Pro:22.04:LTS
All versions, plus listed versions
2.2.8-12.2.12-12.2.13-12.2.14-12.2.16-12.2.16-1ubuntu0.1~esm1
None known
undertow
Ubuntu:Pro:24.04:LTS
All versions, plus listed versions
2.3.8-22.3.8-2ubuntu0.1~esm1
None known
undertow
Ubuntu:26.10
All versions, plus listed versions
2.3.20-1ubuntu1
None known
undertow
Ubuntu:26.04:LTS
All versions, plus listed versions
2.3.18-22.3.20-12.3.20-1ubuntu1
None known

History

History
RecordedChangedSources
factsCVE List
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-114370 is a low vulnerability (CVSS 3.7) in Red Hat Build Of Apache Camel For Spring Boot 4, published October 21, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.32%, the 25th percentile. No source names a fixed version.

References

This page doesn't list everything

Left out here: 6 versions. The JSON record has them.

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