CVE-2026-86777
Published:September 09, 2026
Updated:September 22, 2026
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.
Affected Packages
https://github.com/AlchemyCMS/alchemy_cms.git (GITHUB):
Affected version(s) >=v8.0.0.a <v8.3.6Fix Suggestion:
Update to version v8.3.6https://github.com/AlchemyCMS/alchemy_cms.git (GITHUB):
Affected version(s) >=v7.4.0 <v7.4.16Fix Suggestion:
Update to version v7.4.16alchemy_cms (RUBY):
Affected version(s) >=7.4.0 <7.4.16Fix Suggestion:
Update to version 7.4.16alchemy_cms (RUBY):
Affected version(s) >=8.0.0.a <8.3.6Fix Suggestion:
Update to version 8.3.6Related Resources (9)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Missing Authorization
EPSS
Base Score:
0.41