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MEDIUM severity

CometVisu Backend for openHAB has a path traversal vulnerabilityGHSA-pcwp-26pw-j98w

MEDIUMFix: openhab/openhab-webui@630e852

GHSA-pcwp-26pw-j98w is a medium-severity (CVSS 5.3) Path Traversal vulnerability in org.openhab.ui.bundles:org.openhab.ui.cometvisu. A fix is available for org.openhab.ui.bundles:org.openhab.ui.cometvisu — see the affected versions and patch details below.

Also known asCVE-2024-42468
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-pcwp-26pw-j98w.

EPSS Exploitation Probability

via FIRST.org ↗
0.8%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs57th percentile — riskier than 57% of all scored CVEsHighest risk
0.31%0.89%1.47%2.05%1.6%0.8%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
☕org.openhab.ui.bundles:org.openhab.ui.cometvisu

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

openHAB's CometVisuServlet is susceptible to an unauthenticated path traversal vulnerability.

Local files on the server can be requested via HTTP GET on the CometVisuServlet.

This vulnerability was discovered with the help of CodeQL's Uncontrolled data used in path expression query.

Impact

This issue may lead to Information Disclosure.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.openhab.ui.bundles:org.openhab.ui.cometvisuall versions4.2.1org.openhab.ui.bundles:org.openhab.ui.cometvisu:4.2.1

Affected Products

1 product · 1 configurations
Application
openhabopenhab
< 4.2.1
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.openhab.ui.bundles:org.openhab.ui.cometvisu, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.openhab.ui.bundles:org.openhab.ui.cometvisu to 4.2.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-pcwp-26pw-j98w is resolved across your whole dependency graph.

  3. Workarounds

    Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

openHAB's [CometVisuServlet](https://github.com/openhab/openhab-webui/blob/1c03c60f84388b9d7da0231df2d4ebb1e17d3fcf/bundles/org.openhab.ui.cometvisu/src/main/java/org/openhab/ui/cometvisu/internal/servlet/CometVisuServlet.java#L75) is susceptible to an unauthenticated path traversal vulnerability. Local files on the server can be requested via HTTP GET on the CometVisuServlet. This vulnerability was discovered with the help of CodeQL's [Uncontrolled data used in path expression](https://codeql.github.com/codeql-query-help/java/java-path-injection/) query. ## Impact This issue may lead to I
O3 Security · Impact-Aware SCA

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CometVisu Backend for openHAB has a path traversal…