CVE-2026-86777

AlchemyCMS before 7.4.16 and 8.x before 8.3.6 Missing Authorization on GET /api/nodes

MEDIUM
5.3
CVSS Score
Published: September 9, 2026 at 10:07 AM UTC
Updated: September 10, 2026 at 04:18 PM UTC
1 product affected across 1 vendorAlchemyCMS

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.6%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 7.4.168.0.0 ≤ v < 8.3.68.0.0
Affected range stops below 7.4.16, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.3.6, so it looks safe — our inference, not a vendor statement

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-862

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