CVE-2026-3174: Missing Authorization

The Event Tickets and Registration plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the Stripe OAuth return endpoint in all versions up to, and including, 5.27.4. This makes it possible for unauthenticated attackers to overwrite the site...

CVE-2026-86075: Allocation of Resources Without Limits or Throttling

n8n is an open source workflow automation platform. Prior to 2.37.7 and 2.38.2, the OAuth Dynamic Client Registration endpoint bounded redirecturis but accepted arbitrarily large clientname and granttypes values. An unauthenticated remote caller could repeatedly persist oversized values in...

PT-2026-88506

Impact The OAuth Dynamic Client Registration endpoints validated field sizes only for redirect uris, leaving client name and grant types bounded by presence checks alone. An unauthenticated remote caller could submit arbitrarily large values in either field and have them persisted to the database...

CVE-2026-75156: Origin Validation Error

Apache Airflow FAB provider versions 3.7.3 through 3.8.0 do not validate the issuer or audience of Azure AD idtokens during OAuth login. Deployments are affected only when the FAB auth manager is configured with Azure AD as an OAuth provider. Because the signing keys are fetched from Microsoft's...

Fedora 44 : perl-Net-OAuth (2026-e33554bf9f)

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-e33554bf9f advisory. Net::OAuth versions before 0.33 for Perl check HMAC-SHA1, HMAC-SHA256 and PLAINTEXT signatures with a non- constant-time comparison in verify. This update...

Fedora 43 : perl-Net-OAuth (2026-370bd8b5f0)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-370bd8b5f0 advisory. Net::OAuth versions before 0.33 for Perl check HMAC-SHA1, HMAC-SHA256 and PLAINTEXT signatures with a non- constant-time comparison in verify. This update...

CVE-2026-82758

Improper Authentication vulnerability in ash-project ashauthenticationoauth2server allows an unauthenticated attacker to register OAuth clients even when Dynamic Client Registration is gated by an initial access token. resolvesecret/3 in AshAuthentication.Oauth2Server reached through resolvesecre...

CVE-2026-82754

Improper Protection of Alternate Path vulnerability in ash-project ashauthenticationoauth2server exposes the state-changing OAuth endpoints under an unintended URL prefix, bypassing controls scoped to the canonical prefix. oauth2serverprotocolroutes/1 in...

CVE-2026-82755

Use of Cache Containing Sensitive Information vulnerability in ash-project ashauthenticationoauth2server allows a shared HTTP cache to serve one tenant's OAuth discovery metadata to another tenant's clients. The RFC 8414 and RFC 9728 metadata endpoints in...

EUVD-2026-72540

Improper Authentication vulnerability in ash-project ashauthenticationoauth2server allows an unauthenticated attacker to register OAuth clients even when Dynamic Client Registration is gated by an initial access token. resolvesecret/3 in AshAuthentication.Oauth2Server reached through resolvesecre...

CVE-2026-82758 ash_authentication_oauth2_server treats an empty resolved secret as valid, opening the gated Dynamic Client Registration endpoint

Improper Authentication vulnerability in ash-project ashauthenticationoauth2server allows an unauthenticated attacker to register OAuth clients even when Dynamic Client Registration is gated by an initial access token. resolvesecret/3 in AshAuthentication.Oauth2Server reached through resolvesecre...

EEF-CVE-2026-82758 ash_authentication_oauth2_server treats an empty resolved secret as valid, opening the gated Dynamic Client Registration endpoint

Summary Improper Authentication vulnerability in ash-project ashauthenticationoauth2server allows an unauthenticated attacker to register OAuth clients even when Dynamic Client Registration is gated by an initial access token. resolvesecret/3 in AshAuthentication.Oauth2Server reached through...

CVE-2026-82758

ash_authentication_oauth2_server (ash-project, Elixir) has an Improper Authentication flaw in resolve_secret/3: any secret-provider return other than {:ok, _} or :error was treated as valid, wrapping nil, false, or "" as {:ok, value}. When the initial_access_token resolves to such an empty value,...

EUVD-2026-72537

Use of Cache Containing Sensitive Information vulnerability in ash-project ashauthenticationoauth2server allows a shared HTTP cache to serve one tenant's OAuth discovery metadata to another tenant's clients. The RFC 8414 and RFC 9728 metadata endpoints in...

CVE-2026-82755 ash_authentication_oauth2_server serves tenant-specific OAuth metadata as publicly cacheable without Vary, enabling cross-tenant confusion

Use of Cache Containing Sensitive Information vulnerability in ash-project ashauthenticationoauth2server allows a shared HTTP cache to serve one tenant's OAuth discovery metadata to another tenant's clients. The RFC 8414 and RFC 9728 metadata endpoints in...

CVE-2026-82755 ash_authentication_oauth2_server serves tenant-specific OAuth metadata as publicly cacheable without Vary, enabling cross-tenant confusion

Use of Cache Containing Sensitive Information vulnerability in ash-project ashauthenticationoauth2server allows a shared HTTP cache to serve one tenant's OAuth discovery metadata to another tenant's clients. The RFC 8414 and RFC 9728 metadata endpoints in...

EEF-CVE-2026-82755 ash_authentication_oauth2_server serves tenant-specific OAuth metadata as publicly cacheable without Vary, enabling cross-tenant confusion

Summary Use of Cache Containing Sensitive Information vulnerability in ash-project ashauthenticationoauth2server allows a shared HTTP cache to serve one tenant's OAuth discovery metadata to another tenant's clients. The RFC 8414 and RFC 9728 metadata endpoints in...

CVE-2026-82755

ash_authentication_oauth2_server (ash-project, versions 0.1.3 through before 0.3.1) suffers from a cache-poisoning issue in its RFC 8414 / RFC 9728 metadata endpoints (AshAuthentication.Phoenix.Oauth2Server.ProtocolRouter). When a tenant is derived from a header or Host value rather than the URL,...

CVE-2026-82755 ash_authentication_oauth2_server serves tenant-specific OAuth metadata as publicly cacheable without Vary, enabling cross-tenant confusion

Use of Cache Containing Sensitive Information vulnerability in ash-project ashauthenticationoauth2server allows a shared HTTP cache to serve one tenant's OAuth discovery metadata to another tenant's clients. The RFC 8414 and RFC 9728 metadata endpoints in...

EUVD-2026-72536

Improper Protection of Alternate Path vulnerability in ash-project ashauthenticationoauth2server exposes the state-changing OAuth endpoints under an unintended URL prefix, bypassing controls scoped to the canonical prefix. oauth2serverprotocolroutes/1 in...