Answer in brief
CVE-2024-42467 records a High severity (CVSS 10.0) vulnerability in CometVisu Backend for openHAB affected by SSRF/XSS. The current sources do not mark it as known exploited. The current feed maps openhab/openhab-webui (generic), openhab/openhab_webui (generic), org.openhab.ui.bundles:org.openhab.ui.cometvisu (maven). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2024-42467 records a High severity (CVSS 10.0) vulnerability in CometVisu Backend for openHAB affected by SSRF/XSS. The current sources do not mark it as known exploited. The current feed maps openhab/openhab-webui (generic), openhab/openhab_webui (generic), org.openhab.ui.bundles:org.openhab.ui.cometvisu (maven). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 10.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps openhab/openhab-webui (generic), openhab/openhab_webui (generic), org.openhab.ui.bundles:org.openhab.ui.cometvisu (maven). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:openhab:openhab_web_interface:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| openhab/openhab-webuigeneric | >= 3.4.0.M4, < 4.2.1 | Not reported |
| openhab/openhab_webuigeneric | >=0 <4.2.1 | 4.2.1 |
| org.openhab.ui.bundles:org.openhab.ui.cometvisumaven | >=3.4.0.M4,<=4.2.0 | 4.2.1 |
Published upstream
Aug 9, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
openHAB, a provider of open-source home automation software, has add-ons including the visualization add-on CometVisu. In versions 3.4.0.M4 through 4.2.0,, the proxy endpoint of openHAB's CometVisu add-on can be accessed without authentication. This proxy-feature can be exploited as Server-Side Request Forgery (SSRF) to induce GET HTTP requests to internal-only servers, in case openHAB is exposed in a non-private network. Furthermore, this proxy-feature can also be exploited as a Cross-Site Scripting (XSS) vulnerability, as an attacker is able to re-route a request to their server and return a page with malicious JavaScript code. Since the browser receives this data directly from the openHAB CometVisu UI, this JavaScript code will be executed with the origin of the CometVisu UI. This allows an attacker to exploit call endpoints on an openHAB server even if the openHAB server is located in a private network. (e.g. by sending an openHAB admin a link that proxies malicious JavaScript.) This issue may lead up to Remote Code Execution (RCE) when chained with other vulnerabilities. Users should upgrade to version 4.2.1 of the CometVisu add-on of openHAB to receive a patch.
Quoted source text, attributed separately from HOL analysis.
CVSS is 10.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps openhab/openhab-webui (generic), openhab/openhab_webui (generic), org.openhab.ui.bundles:org.openhab.ui.cometvisu (maven). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:openhab:openhab_web_interface:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| openhab/openhab-webuigeneric | >= 3.4.0.M4, < 4.2.1 | Not reported |
| openhab/openhab_webuigeneric | >=0 <4.2.1 | 4.2.1 |
| org.openhab.ui.bundles:org.openhab.ui.cometvisumaven | >=3.4.0.M4,<=4.2.0 | 4.2.1 |
Published upstream
Aug 9, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
openHAB, a provider of open-source home automation software, has add-ons including the visualization add-on CometVisu. In versions 3.4.0.M4 through 4.2.0,, the proxy endpoint of openHAB's CometVisu add-on can be accessed without authentication. This proxy-feature can be exploited as Server-Side Request Forgery (SSRF) to induce GET HTTP requests to internal-only servers, in case openHAB is exposed in a non-private network. Furthermore, this proxy-feature can also be exploited as a Cross-Site Scripting (XSS) vulnerability, as an attacker is able to re-route a request to their server and return a page with malicious JavaScript code. Since the browser receives this data directly from the openHAB CometVisu UI, this JavaScript code will be executed with the origin of the CometVisu UI. This allows an attacker to exploit call endpoints on an openHAB server even if the openHAB server is located in a private network. (e.g. by sending an openHAB admin a link that proxies malicious JavaScript.) This issue may lead up to Remote Code Execution (RCE) when chained with other vulnerabilities. Users should upgrade to version 4.2.1 of the CometVisu add-on of openHAB to receive a patch.
Quoted source text, attributed separately from HOL analysis.