CVE-2026-86777AlchemyCMS before 7.4.16 and 8.x before 8.3.6 Missing Authorization on GET /api/nodes
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weakness (CWE)
- CWE-862
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 9, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
AlchemyCMS alchemy_cms alchemycms:alchemy_cms (from the name) | before 7.4.16; from 8.0.0 before 8.3.6 | CNA record |
References
- https://github.com/AlchemyCMS/alchemy_cms/security/advisories/GHSA-wppq-8h64-w78rvendor-advisory
- https://github.com/AlchemyCMS/alchemy_cms/commit/5e2cd16a806c9d2df3eb6e3c889402487e0085b6patch
- https://github.com/AlchemyCMS/alchemy_cms/commit/9bdb98496d6f17277ed05dd1abc3188f880aa554patch
- https://github.com/AlchemyCMS/alchemy_cms/blob/v8.3.5/app/controllers/alchemy/api/nodes_controller.rbtechnical-description
- https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v8.3.6release-notes
- https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v7.4.16release-notes
- https://github.com/AlchemyCMS/alchemy_cmsproduct
- https://www.vulncheck.com/advisories/alchemycms-before-7.4.16-and-8-x-before-8.3.6-missing-authorization-on-get-api-nodesthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.