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Vulnerability Details :

CVE-2026-32632

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-18 Mar, 2026 | 17:47
Updated At-18 Mar, 2026 | 18:15
Rejected At-
Credits

Glances's REST/WebUI Lacks Host Validation and Remains Exposed to DNS Rebinding

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:18 Mar, 2026 | 17:47
Updated At:18 Mar, 2026 | 18:15
Rejected At:
▼CVE Numbering Authority (CNA)
Glances's REST/WebUI Lacks Host Validation and Remains Exposed to DNS Rebinding

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.

Affected Products
Vendor
nicolargo
Product
glances
Versions
Affected
  • < 4.5.2
Problem Types
TypeCWE IDDescription
CWECWE-346CWE-346: Origin Validation Error
Type: CWE
CWE ID: CWE-346
Description: CWE-346: Origin Validation Error
Metrics
VersionBase scoreBase severityVector
3.15.9MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
Version: 3.1
Base score: 5.9
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/nicolargo/glances/security/advisories/GHSA-hhcg-r27j-fhv9
x_refsource_CONFIRM
https://github.com/nicolargo/glances/commit/5850c564ee10804fdf884823b9c210eb954dd1f9
x_refsource_MISC
https://github.com/nicolargo/glances/releases/tag/v4.5.2
x_refsource_MISC
Hyperlink: https://github.com/nicolargo/glances/security/advisories/GHSA-hhcg-r27j-fhv9
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/nicolargo/glances/commit/5850c564ee10804fdf884823b9c210eb954dd1f9
Resource:
x_refsource_MISC
Hyperlink: https://github.com/nicolargo/glances/releases/tag/v4.5.2
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/nicolargo/glances/security/advisories/GHSA-hhcg-r27j-fhv9
exploit
Hyperlink: https://github.com/nicolargo/glances/security/advisories/GHSA-hhcg-r27j-fhv9
Resource:
exploit
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:18 Mar, 2026 | 18:16
Updated At:19 Mar, 2026 | 19:06

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.15.9MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
Type: Secondary
Version: 3.1
Base score: 5.9
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
CPE Matches

nicolargo
nicolargo
>>glances>>Versions before 4.5.2(exclusive)
cpe:2.3:a:nicolargo:glances:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-346Secondarysecurity-advisories@github.com
CWE ID: CWE-346
Type: Secondary
Source: security-advisories@github.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/nicolargo/glances/commit/5850c564ee10804fdf884823b9c210eb954dd1f9security-advisories@github.com
Patch
https://github.com/nicolargo/glances/releases/tag/v4.5.2security-advisories@github.com
Release Notes
https://github.com/nicolargo/glances/security/advisories/GHSA-hhcg-r27j-fhv9security-advisories@github.com
Exploit
Vendor Advisory
https://github.com/nicolargo/glances/security/advisories/GHSA-hhcg-r27j-fhv9134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit
Vendor Advisory
Hyperlink: https://github.com/nicolargo/glances/commit/5850c564ee10804fdf884823b9c210eb954dd1f9
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/nicolargo/glances/releases/tag/v4.5.2
Source: security-advisories@github.com
Resource:
Release Notes
Hyperlink: https://github.com/nicolargo/glances/security/advisories/GHSA-hhcg-r27j-fhv9
Source: security-advisories@github.com
Resource:
Exploit
Vendor Advisory
Hyperlink: https://github.com/nicolargo/glances/security/advisories/GHSA-hhcg-r27j-fhv9
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource:
Exploit
Vendor Advisory

Change History

0
Information is not available yet

Similar CVEs

1Records found

CVE-2026-32634
Matching Score-6
Assigner-GitHub, Inc.
ShareView Details
Matching Score-6
Assigner-GitHub, Inc.
CVSS Score-8.1||HIGH
EPSS-0.01% / 2.50%
||
7 Day CHG~0.00%
Published-18 Mar, 2026 | 17:55
Updated-19 Mar, 2026 | 19:03
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Glances Central Browser Autodiscovery Leaks Reusable Credentials to Zeroconf-Spoofed Servers

Glances is an open-source system cross-platform monitoring tool. Prior to version 4.5.2, in Central Browser mode, Glances stores both the Zeroconf-advertised server name and the discovered IP address for dynamic servers, but later builds connection URIs from the untrusted advertised name instead of the discovered IP. When a dynamic server reports itself as protected, Glances also uses that same untrusted name as the lookup key for saved passwords and the global `[passwords] default` credential. An attacker on the same local network can advertise a fake Glances service over Zeroconf and cause the browser to automatically send a reusable Glances authentication secret to an attacker-controlled host. This affects the background polling path and the REST/WebUI click-through path in Central Browser mode. Version 4.5.2 fixes the issue.

Action-Not Available
Vendor-nicolargonicolargo
Product-glancesglances
CWE ID-CWE-346
Origin Validation Error
CWE ID-CWE-522
Insufficiently Protected Credentials
Details not found