EEF-CVE-2026-82724
- Source
- https://cna.erlef.org/osv/EEF-CVE-2026-82724.html
- Import Source
- https://cna.erlef.org/osv/EEF-CVE-2026-82724.json
- JSON Data
- https://api.osv.dev/v1/vulns/EEF-CVE-2026-82724
- Aliases
-
- CVE-2026-82724
- GHSA-39c8-xcwr-gqff
- Published
- 2026-08-31T03:07:57.455Z
- Modified
- 2026-08-31T03:25:37.849058595Z
- Severity
-
- 7.6 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Broken access control in AshPhoenix SubdomainHook via a nil tenant in handle_subdomain
- Details
-
Summary
Incorrect Authorization vulnerability in ash-project ash_phoenix invokes the SubdomainHook authorization callback with a nil tenant, so tenant-scoped access checks never see the tenant they are meant to enforce.
AshPhoenix.LiveView.SubdomainHook.on_mount/4 attached a handle_params hook to assign the tenant and then immediately called handle_subdomain in the same on_mount. The tenant assign is only written when LiveView later runs handle_params, strictly after on_mount returns, so handle_subdomain read an unset assign and ran as apply(m, f, [socket, nil | a]). A consumer gate that halts when the user does not belong to the tenant instead evaluated nil, either crashing or taking a permissive branch, and it was never re-run once the real subdomain was assigned or on later navigations. The fix runs handle_subdomain inside the handle_params hook with the real tenant on every navigation.
This issue affects ash_phoenix: from 2.1.26 before 2.3.25.
Configuration
The application uses AshPhoenix.LiveView.SubdomainHook with a handle_subdomain callback as a tenant-scoped authorization gate.
- Database specific
{ "cpe_ids": [ "cpe:2.3:a:ash-project:ash_phoenix:*:*:*:*:*:*:*:*" ], "capec_ids": [ "CAPEC-1" ], "cwe_ids": [ "CWE-863" ] }- References
- Credits
-
-
- Peter Ullrich - FINDER
-
- Peter Ullrich - REPORTER
-
- Zach Daniel / Ash Project - REMEDIATION_DEVELOPER
-
- Jonatan Männchen / EEF - COORDINATOR
-
Affected packages
Hex / ash_phoenix
Package
- Name
- ash_phoenix
- Purl
- pkg:hex/ash_phoenix