Description
Improper Isolation or Compartmentalization vulnerability in malach-it boruta (Elixir.Boruta.Openid module) allows attackers to register OpenID Connect clients with administrative privileges through the dynamic client registration entry point. Boruta.Openid.register_client/3 forwards caller-supplied registration parameters to the administrative client creation path without a public/admin field-level allowlist, so an unauthenticated registrant can set security-sensitive attributes including supported grant types, authorized scopes, PKCE enforcement, public refresh and revocation behavior, token lifetimes, and signing settings. The library does not distinguish between metadata a public registrant is allowed to set and administrative controls that should require operator approval.
This vulnerability is associated with program files lib/boruta/openid.ex and program routines 'Elixir.Boruta.Openid':register_client/3, 'Elixir.Boruta.Openid':parse_registration_params/2.
This issue affects boruta from 2.3.0 before 2.3.7.
Metrics
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| malach-it | boruta | >= 2.3.0, < 2.3.7 |
| malach-it | boruta | >= 85481b706636fe68a43d0b8d3275e2afc7f7fee1, < * |
References
- https://cna.erlef.org/cves/CVE-2026-65635.html
- https://github.com/malach-it/boruta_auth/commit/82584c854a332482232fd25301ab12a835f9f643
- https://github.com/malach-it/boruta_auth/commit/95619a1beaff68fa766cca9b388e7c780d182525
- https://github.com/malach-it/boruta_auth/security/advisories/GHSA-w869-fcf2-68vp
- https://osv.dev/vulnerability/EEF-CVE-2026-65635
- https://github.com/malach-it/boruta_auth/security/advisories/GHSA-w869-fcf2-68vp
Timeline
- Published
- Jul 30, 2026
- Last modified
- Oct 23, 2026
- NVD status
- Deferred