p PatchFirst

CVE-2026-33533

CVE-2026-33533 · Glances Vulnerable to Cross-Origin System Information Disclosure via XML-RPC Server CORS Wildcard

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Glances is an open-source system cross-platform monitoring tool. Prior to version 4.5.3, the Glances XML-RPC server (activated with glances -s or glances --server) sends Access-Control-Allow-Origin: * on every HTTP response. Because the XML-RPC handler does not validate the Content-Type header, an attacker-controlled webpage can issue a CORS "simple request" (POST with Content-Type: text/plain) containing a valid XML-RPC payload. The browser sends the request without a preflight check, the server processes the XML body and returns the full system monitoring dataset, and the wildcard CORS header lets the attacker's JavaScript read the response. The result is complete exfiltration of hostname, OS version, IP addresses, CPU/memory/disk/network stats, and the full process list including command lines (which often contain tokens, passwords, or internal paths). This issue has been patched in version 4.5.3.

CVSS 7.1 · High · EPSS 0.3% · Fix available

Published
Updated

Stack: system · python

Affected products and versions

  • glances

    Versions
    • < 4.5.3: Affected

    No fix published

  • glances Debian:12

    Versions
    • 3.3.1.1+dfsg-1
    • 3.4.0.3+dfsg-1
    • 4.0.5+dfsg-1
    • 4.1.2.1+dfsg-1
    • 4.2.1+dfsg-1
    • 4.3.0.8+dfsg-1
    • 4.3.1+dfsg-1
    • 4.3.3+dfsg-1
    • 4.5.1+dfsg-1
    • 4.5.2+dfsg-1
    • 4.5.3.2+dfsg-1
    • 4.5.4+dfsg-1
    • 4.5.5+dfsg-1
    • 4.5.6+dfsg-1
    • 4.5.7+dfsg-1
    • 4.5.8+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • glances Debian:13

    Versions
    • 4.3.1+dfsg-1
    • 4.3.3+dfsg-1
    • 4.5.1+dfsg-1
    • 4.5.2+dfsg-1
    • 4.5.3.2+dfsg-1
    • 4.5.4+dfsg-1
    • 4.5.5+dfsg-1
    • 4.5.6+dfsg-1
    • 4.5.7+dfsg-1
    • 4.5.8+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • glances Debian:14

    Versions
    • 4.3.1+dfsg-1
    • 4.3.3+dfsg-1
    • 4.5.1+dfsg-1
    • 4.5.2+dfsg-1
    Affected ranges
    • ECOSYSTEM: < 4.5.3.2+dfsg-1

    Update to 4.5.3.2+dfsg-1

  • glances PyPI

    Versions
    • 1.3.1
    • 1.3.2
    • 1.3.3
    • 1.3.4
    • 1.3.5
    • 1.3.6
    • 1.3.7
    • 1.4
    • 1.4.1
    • 1.4.1.1
    • 1.4.2
    • 1.4.2.1
    • 1.5
    • 1.5.1
    • 1.5.2
    • 1.6
    • 1.6.1
    • 1.7
    • 1.7.1
    • 1.7.2
    • 1.7.3
    • 1.7.4
    • 1.7.5
    • 1.7.6
    • 1.7.7
    • 2.0
    • 2.0.1
    • 2.1
    • 2.1.1
    • 2.1.2
    • 2.10
    • 2.11
    • 2.11.1
    • 2.2
    • 2.2.1
    • 2.3
    • 2.4
    • 2.4.1
    • 2.4.2
    • 2.5
    • 2.5.1
    • 2.6
    • 2.6.1
    • 2.6.2
    • 2.7
    • 2.7.1
    • 2.8
    • 2.8.1
    • 2.8.2
    • 2.8.3
    • 2.8.4
    • 2.8.5
    • 2.8.6
    • 2.8.7
    • 2.8.8
    • 2.9.0
    • 2.9.1
    • 3.0
    • 3.0.1
    • 3.0.2
    • 3.1.0
    • 3.1.1
    • 3.1.2
    • 3.1.3
    • 3.1.4
    • 3.1.4.1
    • 3.1.5
    • 3.1.6
    • 3.1.6.1
    • 3.1.6.2
    • 3.1.7
    • 3.2.0
    • 3.2.1
    • 3.2.2
    • 3.2.3
    • 3.2.3.1
    • 3.2.4
    • 3.2.4.1
    • 3.2.4.2
    • 3.2.5
    • 3.2.6.1
    • 3.2.6.2
    • 3.2.6.3
    • 3.2.6.4
    • 3.2.7
    • 3.3.0
    • 3.3.0.1
    • 3.3.0.2
    • 3.3.0.3
    • 3.3.0.4
    • 3.3.1
    • 3.3.1.1
    • 3.4.0
    • 3.4.0.1
    • 3.4.0.2
    • 3.4.0.3
    • 3.4.0.4
    • 3.4.0.5
    • 4.0.1
    • 4.0.2
    • 4.0.3
    • 4.0.4
    • 4.0.5
    • 4.0.6
    • 4.0.7
    • 4.0.8
    • 4.1.0
    • 4.1.1
    • 4.1.2
    • 4.2.0
    • 4.2.1
    • 4.3.0
    • 4.3.0.1
    • 4.3.0.3
    • 4.3.0.4
    • 4.3.0.5
    • 4.3.0.6
    • 4.3.0.7
    • 4.3.0.8
    • 4.3.1
    • 4.3.2
    • 4.3.3
    • 4.4.0
    • 4.4.1
    • 4.5.0
    • 4.5.0.1
    • 4.5.0.2
    • 4.5.0.3
    • 4.5.0.4
    • 4.5.0.5
    • 4.5.1
    • 4.5.2
    Affected ranges
    • ECOSYSTEM: < 4.5.3

    Update to 4.5.3

  • glances Ubuntu:Pro:16.04:LTS

    Versions
    • 2.3-1build1
    • 2.3-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • glances Ubuntu:Pro:18.04:LTS

    Versions
    • 2.10-2
    • 2.11.1-1
    • 2.11.1-2
    • 2.11.1-3
    • 2.11.1-3ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • glances Ubuntu:Pro:20.04:LTS

    Versions
    • 3.1.0-1
    • 3.1.1-1
    • 3.1.3-1
    • 3.1.3-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • glances Ubuntu:22.04:LTS

    Versions
    • 3.1.5-1
    • 3.2.3.1+dfsg-1
    • 3.2.4.2+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • glances Ubuntu:24.04:LTS

    Versions
    • 3.4.0.3+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • glances Ubuntu:25.10

    Versions
    • 4.3.0.8+dfsg-1
    • 4.3.1+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • glances Ubuntu:26.10

    Versions
    • 4.3.3+dfsg-1
    • 4.5.4+dfsg-1
    • 4.5.5+dfsg-1
    • 4.5.6+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • glances Ubuntu:26.04:LTS

    Versions
    • 4.3.1+dfsg-1
    • 4.3.3+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

Check your server →