Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
The Maven package org.openhab.ui.bundles:org.openhab.ui.cometvisu, versions 3.4.0.M4 up to but not including 4.2.1, contains a proxy endpoint that can be reached without authentication. An attacker who can reach the openHAB server can use it to make GET requests to internal-only servers (server-side request forgery) and to serve pages with malicious JavaScript that runs under the CometVisu UI origin (cross-site scripting). The source says this may lead to remote code execution when chained with other vulnerabilities. Upgrade to version 4.2.1.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 10.0 | Critical | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.010, the 64th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:19 UTC First seen by agentprime
- 31 Oct 2026, 14:19 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-v7gr-mqpj-wwh3
- OSV: GHSA-v7gr-mqpj-wwh3
- github.com/openhab/openhab-webui/security/advisories/GHSA-v7gr-mqpj-wwh3
- nvd.nist.gov/vuln/detail/CVE-2024-42467
- github.com/openhab/openhab-webui/commit/531dabfa8311a50d2e740bf4f2b4f2400e78646c#diff-b9a920cefe5f9b2ee3615cb29f88bcad0535012c2ae2535bd12e47d6d9395b6a
- github.com/openhab/openhab-webui/commit/630e8525835c698cf58856aa43782d92b18087f2
- github.com/openhab/openhab-webui
- github.com/openhab/openhab-webui/blob/1c03c60f84388b9d7da0231df2d4ebb1e17d3fcf/bundles/org.openhab.ui.cometvisu/src/main/java/org/openhab/ui/cometvisu/internal/backend/rest/ProxyResource.java#L83