CVE-2026-65635
Severity CVSS v4.0:
HIGH
Type:
Unavailable / Other
Publication date:
30/07/2026
Last modified:
30/07/2026
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.<br />
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This vulnerability is associated with program files lib/boruta/openid.ex and program routines &#39;Elixir.Boruta.Openid&#39;:register_client/3, &#39;Elixir.Boruta.Openid&#39;:parse_registration_params/2.<br />
<br />
This issue affects boruta from 2.3.0 before 2.3.7.
Impact
Base Score 4.0
8.30
Severity 4.0
HIGH
References to Advisories, Solutions, and Tools
- 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