# CVE-2026-46608

## Summary

- **CVE ID:** CVE-2026-46608
- **Severity:** HIGH
- **CVSS Score:** 7.4 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N)
- **CWE:** CWE-183, CWE-942
- **Published:** Jun 25, 2026
- **Last Modified:** Jun 26, 2026

## Description

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.

## Affected Products

- nicolargo — glances (< 4.5.5)

## References

- [CNA](https://github.com/nicolargo/glances/security/advisories/GHSA-87qc-fj39-wccr)
- [CNA](https://github.com/nicolargo/glances/releases/tag/v4.5.5)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.40%
- **EPSS Percentile:** 33.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._