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CVE-2026-86777— AlchemyCMS before 7.4.16 and 8.x before 8.3.6 Missing Authorization on GET /api/nodes

Quick assessment

Affected
AlchemyCMS alchemy_cms
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.

AlchemyCMS是AlchemyCMS组织的一款灵活可扩展的内容管理系统。 AlchemyCMS 7.4.16之前版本和8.3.6版本之前的8.x版本存在授权问题漏洞，该漏洞源于未对GET /api/nodes端点进行授权验证，导致未经身份验证的攻击者可访问该端点并检索所有导航节点，泄露所有站点和语言的受限页面名称、URL路径和内部URL。

CVSS 5.3 · Medium EPSS 0.56% · P46

Affected Version Matrix 2

VendorProduct Version RangeStatus
AlchemyCMS alchemy_cms < 7.4.16 affected
8.0.0< 8.3.6 affected
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I. Basic Information for CVE-2026-86777

Vulnerability Information
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Vulnerability Title
AlchemyCMS before 7.4.16 and 8.x before 8.3.6 Missing Authorization on GET /api/nodes
Source: CVE Program / CVE List V5
Vulnerability Description
AlchemyCMS versions before 7.4.16 and 8.x before 8.3.6 fail to authorize access to the GET /api/nodes endpoint, allowing unauthenticated attackers to retrieve all navigation nodes. Attackers can access the endpoint without authentication to disclose restricted page names, URL paths, and internal URLs from all sites and languages.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
AlchemyCMS 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AlchemyCMS是AlchemyCMS组织的一款灵活可扩展的内容管理系统。 AlchemyCMS 7.4.16之前版本和8.3.6版本之前的8.x版本存在授权问题漏洞，该漏洞源于未对GET /api/nodes端点进行授权验证，导致未经身份验证的攻击者可访问该端点并检索所有导航节点，泄露所有站点和语言的受限页面名称、URL路径和内部URL。
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
AlchemyCMS alchemy_cms 0 ~ 7.4.16 -

II. Public POCs for CVE-2026-86777

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III. Intelligence Information for CVE-2026-86777

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Patches & Fixes for CVE-2026-86777 (4)

Vendor Advisories for CVE-2026-86777 (2)

Vendor Pages for CVE-2026-86777 (2)

IV. Related Vulnerabilities

Same product: alchemy_cms
Same vendor: AlchemyCMS
Same weakness: CWE-862

V. Comments for CVE-2026-86777

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