CVE-2026-32632— Glances's REST/WebUI Lacks Host Validation and Remains Exposed to DNS Rebinding
Quick assessment
Affected
nicolargo glances
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
glances是Nicolas Hennion个人开发者的一款系统监测工具。 glances 4.5.2之前版本存在安全漏洞，该漏洞源于REST/WebUI应用未应用主机允许列表，可能导致DNS重绑定攻击，使攻击者控制的域访问API和WebUI。
Possible ATT&CK Techniques 3 AI
T1557 · Adversary-in-the-Middle T1041 · Exfiltration Over C2 Channel T1071 · Application Layer Protocol
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I. Basic Information for CVE-2026-32632
Vulnerability Information
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Vulnerability Title
Glances's REST/WebUI Lacks Host Validation and Remains Exposed to DNS Rebinding
Source: CVE Program / CVE List V5
Vulnerability Description
Glances is an open-source system cross-platform monitoring tool. Glances recently added DNS rebinding protection for the MCP endpoint, but prior to version 4.5.2, the main REST/WebUI FastAPI application still accepts arbitrary `Host` headers and does not apply `TrustedHostMiddleware` or an equivalent host allowlist. As a result, the REST API, WebUI, and token endpoint remain reachable through attacker-controlled domains in classic DNS rebinding scenarios. Once the victim browser has rebound the attacker domain to the Glances service, same-origin policy no longer protects the API because the browser considers the rebinding domain to be the origin. This is a distinct issue from the previously reported default CORS weakness. CORS is not required for exploitation here because DNS rebinding causes the victim browser to treat the malicious domain as same-origin with the rebinding target. Version 4.5.2 contains a patch for the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
源验证错误
Source: CVE Program / CVE List V5
Vulnerability Title
glances 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
glances是Nicolas Hennion个人开发者的一款系统监测工具。 glances 4.5.2之前版本存在安全漏洞，该漏洞源于REST/WebUI应用未应用主机允许列表，可能导致DNS重绑定攻击，使攻击者控制的域访问API和WebUI。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-32632
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-32632 (1)
Vendor Advisories for CVE-2026-32632 (1)
Vendor Pages for CVE-2026-32632 (1)
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Release Glances 4.5.2 · nicolargo/glances · GitHub x_refsource_MISC
Same Patch Batch · nicolargo · 2026-03-18 · 8 CVEs total
| CVE-2026-32633 | 9.1 CRITICAL | Glances's Browser API Exposes Reusable Downstream Credentials via `/api/4/serverslist` |
| CVE-2026-32610 | 8.1 HIGH | Glances's Default CORS Configuration Allows Cross-Origin Credential Theft |
| CVE-2026-32634 | 8.1 HIGH | Glances Central Browser Autodiscovery Leaks Reusable Credentials to Zeroconf-Spoofed Serve |
| CVE-2026-32609 | 7.5 HIGH | Glances has Incomplete Secrets Redaction: /api/v4/args Endpoint Leaks Password Hash and SN |
| CVE-2026-32608 | 7.0 HIGH | Glances has a Command Injection via Process Names in Action Command Templates |
| CVE-2026-32611 | 7.0 HIGH | Glances has a SQL Injection in DuckDB Export via Unparameterized DDL Statements |
| CVE-2026-32596 | Glances exposes the REST API without authentication |
IV. Related Vulnerabilities
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Same vendor: nicolargo
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CVE-2026-68519
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CVE-2026-62982
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CVE-2026-68517
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Glances: Command injection bypass of action-template sanitiz
Same weakness: CWE-346
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CVE-2026-102878
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