CVE-2026-32610: Glances's Default CORS Configuration Allows Cross-Origin Credential Theft

CVE-2026-32610 · Severity: low · CVSS 3.1 · Published 2026-03-18

Glances is an open-source system cross-platform monitoring tool. Prior to version 4.5.2, the Glances REST API web server ships with a default CORS configuration that sets `allow_origins=["*"]` combined with `allow_credentials=True`. When both of these options are enabled together, Starlette's `CORSMiddleware` reflects the requesting `Origin` header value in the `Access-Control-Allow-Origin` response header instead of returning the literal `*` wildcard. This effectively grants any website the ability to make credentialed cross-origin API requests to the Glances server, enabling cross-site data theft of system monitoring information, configuration secrets, and command line arguments from any user who has an active browser session with a Glances instance. Version 4.5.2 fixes the issue.

Technologies: glances (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2026-32610 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-32610 being exploited in the wild.
How severe is CVE-2026-32610?
Low severity, with a CVSS score of 3.1, published 18 March 2026.
Which products and versions are affected?
glances (PyPI) ECOSYSTEM:introduced=0,fixed=4.5.2.
Is there a fix for CVE-2026-32610?
Yes. glances (PyPI): upgrade to 4.5.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-32610?
Check whether you run glances (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • glances (PyPI): upgrade to 4.5.2 or later
    pip install "glances>=4.5.2"

Affected products

  • glances (PyPI) ECOSYSTEM:introduced=0,fixed=4.5.2

Identifiers

  • CVE-2026-32610
  • GHSA-9jfm-9rc6-2hfq
  • PYSEC-2026-2169

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