CVE-2026-46608

Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.5, the Glances XML-RPC server (glances -s) introduced a configurable CORS origin list in version 4.5.3 as a mitigation for CVE-2026-33533. However, the implementation silently falls back to Access-Control-Allow-Origin: * whenever cors_origins contains more than one entry. An operator who configures an explicit two-entry allowlist (e.g. two internal dashboard origins) intending to restrict browser access instead receives the unrestricted wildcard. A malicious web page served from any origin can issue a CORS simple request to /RPC2 and read the full system monitoring dataset without the victim's knowledge. This vulnerability is fixed in 4.5.5.

CVSS v3 7.4 HIGH

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/nicolargo/glances/releases/tag/v4.5.5
https://github.com/nicolargo/glances/security/advisories/GHSA-87qc-fj39-wccr

Configurations

No configuration.

History

25 Jun 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-25 19:16

Updated : 2026-06-26 19:16

NVD link : CVE-2026-46608

Mitre link : CVE-2026-46608

CVE.ORG link : CVE-2026-46608

JSON object : View

Products Affected

No product.

CWE

CWE-183

Permissive List of Allowed Inputs

CWE-942

Permissive Cross-domain Policy with Untrusted Domains

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