Permissive Cross-domain Policy with Untrusted Domains Affecting glances package, versions [,4.5.3)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.03% (10th percentile)

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  • Snyk IDSNYK-PYTHON-GLANCES-15917137
  • published6 Apr 2026
  • disclosed2 Apr 2026
  • creditTanishq Shah

Introduced: 2 Apr 2026

NewCVE-2026-33533  (opens in a new tab)
CWE-942  (opens in a new tab)

How to fix?

Upgrade Glances to version 4.5.3 or higher.

Overview

Glances is an A cross-platform curses-based monitoring tool

Affected versions of this package are vulnerable to Permissive Cross-domain Policy with Untrusted Domains via the XML-RPC server. An attacker can access sensitive system information by tricking a user into visiting a malicious webpage that issues a cross-origin POST request containing a valid XML-RPC payload.

Note: This is only exploitable when the Access-Control-Allow-Origin header is set to a wildcard, and the Content-Type header is not validated.

CVSS Base Scores

version 4.0
version 3.1