Glances is an open-source system cross-platform monitoring tool. Prior to version 4.5.3, the Glances XML-RPC server (activated with glances -s or glances --server) sends Access-Control-Allow-Origin: * on every HTTP response. Because the XML-RPC handler does not validate the Content-Type header, an attacker-controlled webpage can issue a CORS "simple request" (POST with Content-Type: text/plain) containing a valid XML-RPC payload. The browser sends the request without a preflight check, the server processes the XML body and returns the full system monitoring dataset, and the wildcard CORS header lets the attacker's JavaScript read the response. The result is complete exfiltration of hostname, OS version, IP addresses, CPU/memory/disk/network stats, and the full process list including command lines (which often contain tokens, passwords, or internal paths). This issue has been patched in version 4.5.3.
References
| Link | Resource |
|---|---|
| https://github.com/nicolargo/glances/commit/dcb39c3f12b2a1eec708c58d22d7a1d62bdf5fa1 | Patch |
| https://github.com/nicolargo/glances/releases/tag/v4.5.3 | Product Release Notes |
| https://github.com/nicolargo/glances/security/advisories/GHSA-7p93-6934-f4q7 | Exploit Vendor Advisory |
Configurations
History
07 Apr 2026, 15:01
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Nicolargo glances
Nicolargo |
|
| References | () https://github.com/nicolargo/glances/commit/dcb39c3f12b2a1eec708c58d22d7a1d62bdf5fa1 - Patch | |
| References | () https://github.com/nicolargo/glances/releases/tag/v4.5.3 - Product, Release Notes | |
| References | () https://github.com/nicolargo/glances/security/advisories/GHSA-7p93-6934-f4q7 - Exploit, Vendor Advisory | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 6.5 |
| CPE | cpe:2.3:a:nicolargo:glances:*:*:*:*:*:*:*:* |
02 Apr 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-02 15:16
Updated : 2026-06-17 10:37
NVD link : CVE-2026-33533
Mitre link : CVE-2026-33533
CVE.ORG link : CVE-2026-33533
JSON object : View
Products Affected
nicolargo
- glances
CWE
CWE-942
Permissive Cross-domain Policy with Untrusted Domains
