CVEvulnerability

CVE-2026-46608

7.4 HIGH Published 2026-06-25 Modified 2026-10-25 Official page ↗
Status
Deferred
Published
2026-06-25
Last modified
2026-10-25
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.4 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Weaknesses
CWE-183, CWE-942

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.

Related

Weakness · CWE (2)

  • CWE-183 Permissive List of Allowed Inputs weakness
  • CWE-942 Permissive Cross-domain Security Policy with Untrusted Domains weakness

References