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CVE-2026-68517— Glances: REST API CORS Credentials Guard Uses Exact-Match Instead of Membership Test — Bypassed by Any Multi-Origin Allowlist Containing the Wildcard

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.

Nicolas Hennion Glances是Nicolas Hennion个人开发者的一款系统监控工具。 Nicolas Hennion Glances 4.5.6之前版本存在配置错误漏洞，该漏洞源于cors_origins防护在glances/outputs/glances_restful_api.py中使用精确列表相等而非通配符成员关系，导致包含通配符的多源列表保留cors_credentials，将已认证的REST API数据暴露给已认证用户访问的不受信任网站。

CVSS 6.5 · Medium EPSS 0.26% · P18

Affected Version Matrix 1

VendorProduct Version RangeStatus
nicolargo glances < 4.5.6 affected
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I. Basic Information for CVE-2026-68517

Vulnerability Information
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Vulnerability Title
Glances: REST API CORS Credentials Guard Uses Exact-Match Instead of Membership Test — Bypassed by Any Multi-Origin Allowlist Containing the Wildcard
Source: CVE Program / CVE List V5
Vulnerability Description
Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.6, the cors_origins guard in glances/outputs/glances_restful_api.py uses exact list equality instead of wildcard membership, allowing a multi-origin list containing the wildcard to retain cors_credentials and expose authenticated REST API data to an untrusted website visited by a previously authenticated user. This issue is fixed in 4.5.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
过度许可的跨域白名单
Source: CVE Program / CVE List V5
Vulnerability Title
Nicolas Hennion Glances 配置错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nicolas Hennion Glances是Nicolas Hennion个人开发者的一款系统监控工具。 Nicolas Hennion Glances 4.5.6之前版本存在配置错误漏洞，该漏洞源于cors_origins防护在glances/outputs/glances_restful_api.py中使用精确列表相等而非通配符成员关系，导致包含通配符的多源列表保留cors_credentials，将已认证的REST API数据暴露给已认证用户访问的不受信任网站。
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

Vendor Product Affected Versions CPE Subscribe
nicolargo glances < 4.5.6 -

II. Public POCs for CVE-2026-68517

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III. Intelligence Information for CVE-2026-68517

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Patches & Fixes for CVE-2026-68517 (2)

Vendor Advisories for CVE-2026-68517 (1)

Same Patch Batch · nicolargo · 2026-08-17 · 5 CVEs total

CVE-2026-68518 8.8 HIGH Glances: Command injection bypass of action-template sanitizer via cross-field shell-opera
CVE-2026-62982 8.8 HIGH Glances: Incomplete fix of CVE-2026-32608: action-template sanitizer is bypassed by nested
CVE-2026-68519 7.1 HIGH Glances: `--disable-config-exec` does not cover on-alert action commands (incomplete fix o
CVE-2026-68520 5.3 MEDIUM Glances: as_dict_secure() Value-Level Bypass Leaks Credentials in URL Values via /api/4/co

IV. Related Vulnerabilities

Same product: glances
Same vendor: nicolargo
Same weakness: CWE-942

V. Comments for CVE-2026-68517

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