Description
Glances is an open-source system cross-platform monitoring tool. Prior to version 4.5.4, the Glances web server exposes a REST API (`/api/4/*`) that is accessible without authentication and allows cross-origin requests from any origin due to a permissive CORS policy (`Access-Control-Allow-Origin: *`). This allows a malicious website to read sensitive system information from a running Glances instance in the victim’s browser, leading to cross-origin data exfiltration. While a previous advisory exists for XML-RPC CORS issues, this report demonstrates that the REST API (`/api/4/*`) is also affected and exposes significantly more sensitive data. Version 4.5.4 patches the issue.
INFO
Published Date :
2026-04-20T23:09:02.551Z
Last Modified :
2026-04-21T19:37:42.399Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-34839 vulnerability.
| Vendors | Products |
|---|---|
| Nicolargo |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34839.
