CVE-2024-42468Public exploitNetwork attack vector

Unauthenticated file disclosure via decoded path traversal

Published Aug 9, 2024 · Updated Aug 13, 2024

Path traversal in openHAB WebUI's CometVisu add-on before 4.2.1 allows remote attackers to read local server files via HTTP GET. CometVisuServlet URL-decodes the requested path, joins it to its content root without constraining the resolved location, and streams the resulting file. No authentication is required, but the CometVisu userdata directory must exist; a double-encoded traversal discloses files readable by the openHAB process.

CVSS severity5.3
Medium
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in openHAB WebUI's CometVisu add-on before 4.2.1 allows remote attackers to read local server files via HTTP GET. CometVisuServlet URL-decodes the requested path, joins it to its content root without constraining the resolved location, and streams the resulting file. No authentication is required, but the CometVisu userdata directory must exist; a double-encoded traversal discloses files readable by the openHAB process.

The record

CVE
CVE-2024-42468
Published
Aug 9, 2024
Updated
Aug 13, 2024
Vendor
openHAB
Product
openHAB WebUI
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <4.2.1
  2. Affected versionversion=< 4.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

openHAB · openHAB WebUIversion=0 <4.2.1; version=< 4.2.1

Published CVSS scores

5.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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