CVE-2026-86777: medium-severity vulnerability in AlchemyCMS alchemy_cms
AlchemyCMS before 7.4.16 and 8.x before 8.3.6 Missing Authorization on GET /api/nodes
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.9epss 0.6%
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
AlchemyCMS · alchemy_cmsRelated CVEs — AlchemyCMS alchemy_cms
In the same product, most dangerous first.
References
https://github.com/AlchemyCMS/alchemy_cmshttps://github.com/AlchemyCMS/alchemy_cms/blob/v8.3.5/app/controllers/alchemy/api/nodes_controller.rbhttps://github.com/AlchemyCMS/alchemy_cms/commit/5e2cd16a806c9d2df3eb6e3c889402487e0085b6https://github.com/AlchemyCMS/alchemy_cms/commit/9bdb98496d6f17277ed05dd1abc3188f880aa554https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v7.4.16https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v8.3.6https://github.com/AlchemyCMS/alchemy_cms/security/advisories/GHSA-wppq-8h64-w78rhttps://www.vulncheck.com/advisories/alchemycms-before-7.4.16-and-8-x-before-8.3.6-missing-authorization-on-get-api-nodes