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CVE-2026-86777 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CNA: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/AlchemyCMS/alchemy_cms/security/advisories/GHSA-wppq-8h64-w78r	CISA-ADP	AdvisoryRemedy
https://github.com/AlchemyCMS/alchemy_cms	[email protected]	Vendor
https://github.com/AlchemyCMS/alchemy_cms/blob/v8.3.5/app/controllers/alchemy/api/nodes_controller.rb	[email protected]	Source CodeVendor
https://github.com/AlchemyCMS/alchemy_cms/commit/5e2cd16a806c9d2df3eb6e3c889402487e0085b6	[email protected]	Source CodeVendor
https://github.com/AlchemyCMS/alchemy_cms/commit/9bdb98496d6f17277ed05dd1abc3188f880aa554	[email protected]	Source CodeVendor
https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v7.4.16	[email protected]	Release NotesVendor
https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v8.3.6	[email protected]	Release NotesVendor
https://github.com/AlchemyCMS/alchemy_cms/security/advisories/GHSA-wppq-8h64-w78r	[email protected]	AdvisoryRemedy
https://www.vulncheck.com/advisories/alchemycms-before-7.4.16-and-8-x-before-8.3.6-missing-authorization-on-get-api-nodes	[email protected]	AdvisoryRemedy

see all 9 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-862	Missing Authorization	[email protected]

Affected Products

Product	Versions
AlchemyCMS	< 7.4.16 (semver) < 8.3.6 (semver)
CPE cpe:2.3:a:alchemy-cms:alchemy_cms:::::::: Remediation Upgrade: 7.4.16moderate effort Upgrade: 8.3.6moderate effort

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 9, 2026	CVE Modified	CISA-ADP
Sep 9, 2026	New CVE Received	[email protected]