CVE-2026-68517: CWE-942: Permissive Cross-domain Policy with Untrusted Domains in nicolargo glances
CVE-2026-68517 is a medium severity vulnerability in the open-source system monitoring tool Glances. Versions prior to 4.5.6 have a permissive cross-domain policy issue in the RESTful API implementation. The vulnerability arises because the CORS origins guard uses exact list equality instead of wildcard membership, allowing a multi-origin list containing a wildcard to retain credentials and expose authenticated API data to untrusted websites. This issue is fixed in version 4.5.6.
AI Analysis
Technical Summary
The vulnerability CVE-2026-68517 affects Glances versions before 4.5.6. It involves a permissive cross-domain policy in the RESTful API where the cors_origins guard incorrectly uses exact list equality checks rather than properly handling wildcard membership. This flaw allows a multi-origin list that includes a wildcard to retain user credentials and expose authenticated API data to untrusted websites visited by users who have previously authenticated. The issue has been addressed and fixed in Glances version 4.5.6.
Potential Impact
An attacker controlling or hosting an untrusted website could potentially access authenticated API data from a user who previously authenticated to Glances, due to the permissive cross-domain policy. This exposure could lead to unauthorized disclosure of sensitive monitoring data. The vulnerability does not affect integrity or availability, only confidentiality.
Mitigation Recommendations
Upgrade Glances to version 4.5.6 or later, where this vulnerability is fixed. No other mitigation is indicated or required according to the provided data.
CVE-2026-68517: CWE-942: Permissive Cross-domain Policy with Untrusted Domains in nicolargo glances
Description
CVE-2026-68517 is a medium severity vulnerability in the open-source system monitoring tool Glances. Versions prior to 4.5.6 have a permissive cross-domain policy issue in the RESTful API implementation. The vulnerability arises because the CORS origins guard uses exact list equality instead of wildcard membership, allowing a multi-origin list containing a wildcard to retain credentials and expose authenticated API data to untrusted websites. This issue is fixed in version 4.5.6.
CVSS v3.1
Score 6.5medium
Affected software
nicolargo
glances
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-68517 affects Glances versions before 4.5.6. It involves a permissive cross-domain policy in the RESTful API where the cors_origins guard incorrectly uses exact list equality checks rather than properly handling wildcard membership. This flaw allows a multi-origin list that includes a wildcard to retain user credentials and expose authenticated API data to untrusted websites visited by users who have previously authenticated. The issue has been addressed and fixed in Glances version 4.5.6.
Potential Impact
An attacker controlling or hosting an untrusted website could potentially access authenticated API data from a user who previously authenticated to Glances, due to the permissive cross-domain policy. This exposure could lead to unauthorized disclosure of sensitive monitoring data. The vulnerability does not affect integrity or availability, only confidentiality.
Mitigation Recommendations
Upgrade Glances to version 4.5.6 or later, where this vulnerability is fixed. No other mitigation is indicated or required according to the provided data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-30T16:19:08.082Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a8340cebf8831d5393f69e3
Added to database: 08/17/2026, 17:11:42 UTC
Last enriched: 09/29/2026, 04:58:56 UTC
Last updated: 10/01/2026, 14:51:09 UTC
Views: 64
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