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TI-2026-25926 Aliases CVE-2026-33533GHSA-7p93-6934-f4q7

Glances Vulnerable to Cross-Origin System Information Disclosure via XML-RPC Server CORS Wildcard

Priority MEDIUM 64CWE-942Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00345 28th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed glances (nicolargo): 4.5.3Glances (PyPI): 4.5.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
nicolargoglancesbefore 4.5.34.5.3Patch availableCNA
—Glances (PyPI)before 4.5.34.5.3Patch availableGHSA-7p93-6934-f4q7
  • glances Vendornicolargo Affected before 4.5.3 Fixed in 4.5.3 Patch available CNA
  • Glances (PyPI) Vendor— Affected before 4.5.3 Fixed in 4.5.3 Patch available GHSA-7p93-6934-f4q7

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nicolargo:glances:*:*:*:*:*:*:*:*before 4.5.3Vulnerablenicolargo
  • cpe:2.3:a:nicolargo:glances:*:*:*:*:*:*:*:* Versions before 4.5.3 Vulnerable ·nicolargo

Remediation

  • Fix · CNA glances (nicolargo) Fixed in 4.5.3
  • Fix · GHSA-7p93-6934-f4q7 Glances (PyPI) Fixed in 4.5.3 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-33533
  2. 2026-10-03 Alias added: GHSA-7p93-6934-f4q7

References

Exploit 1

Patch 1

Advisory 1

Other 2

  • TI-2026-25142 Glances's Browser API Exposes Reusable Downstream Credentials via `/api/4/serverslist` CVSS 3.1CRITICAL 9.1
  • TI-2026-25106 Glances exposes the REST API without authentication CVSS 4.0HIGH 8.7
  • TI-2026-27083 Glances Vulnerable to Cross-Origin Information Disclosure via Unauthenticated REST API (/api/4) due to Permissive CORS CVSS 4.0HIGH 7.7
  • TI-2026-25120 Glances has a SQL Injection in DuckDB Export via Unparameterized DDL Statements CVSS 3.1CRITICAL 9.1
  • TI-2026-25118 Glances has Incomplete Secrets Redaction: /api/v4/args Endpoint Leaks Password Hash and SNMP Credentials CVSS 3.1HIGH 7.5
  • TI-2026-25143 Glances Central Browser Autodiscovery Leaks Reusable Credentials to Zeroconf-Spoofed Servers CVSS 3.1HIGH 8.1
See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences