Keycloak < 24.0.5 - Broken Access Control

A flaw was found in Keycloak. Certain endpoints in Keycloak's admin REST API allow low-privilege users to access administrative functionalities. This flaw allows users to perform actions reserved for administrators, potentially leading to data breaches or system compromise. id: CVE-2024-3656 info...

CVE-2026-67333

better-auth before 1.6.13 and pre-release builds 1.7.0-beta.0 through 1.7.0-beta.3 fail to validate the scheme of redirecturis registered via the deprecated oidc-provider plugin and the mcp plugin which wraps the same provider. An attacker can register an OAuth client with a javascript:...

EUVD-2026-51810

better-auth before 1.6.13 and pre-release builds 1.7.0-beta.0 through 1.7.0-beta.3 fail to validate the scheme of redirecturis registered via the deprecated oidc-provider plugin and the mcp plugin which wraps the same provider. An attacker can register an OAuth client with a javascript:...

CVE-2026-18208

A flaw was found in the OIDC token introspection endpoint of the keycloak-services component. Keycloak is an open-source identity and access management solution used to secure modern applications and services. The issue occurs when a confidential client, configured to receive signed JWT...

CVE-2026-18209

A flaw was found in the keycloak-services component of Keycloak, which handles OpenID Connect OIDC authentication flows. The issue occurs because the security check designed to prevent HTTP parameter pollution only inspects the query portion of a redirect URL and ignores the fragment portion. Whe...

CVE-2026-18209 Keycloak-services: keycloak-services: oidc redirect_uri fragment bypass in http parameter pollution check

A flaw was found in the keycloak-services component of Keycloak, which handles OpenID Connect OIDC authentication flows. The issue occurs because the security check designed to prevent HTTP parameter pollution only inspects the query portion of a redirect URL and ignores the fragment portion. Whe...

CVE-2026-18209

The CVE concerns Keycloak's keycloak-services component handling OpenID Connect (OIDC) authentication flows. The vulnerability arises because the security check to prevent HTTP parameter pollution only inspects the query of a redirect URL, ignoring the fragment portion. With a client configured w...

EUVD-2026-51482

A flaw was found in the OIDC token introspection endpoint of the keycloak-services component. Keycloak is an open-source identity and access management solution used to secure modern applications and services. The issue occurs when a confidential client, configured to receive signed JWT...

CVE-2026-18208

A flaw was found in the OIDC token introspection endpoint of the keycloak-services component. Keycloak is an open-source identity and access management solution used to secure modern applications and services. The issue occurs when a confidential client, configured to receive signed JWT...

SUSE CVE-2026-55671

ZITADEL is an open source identity management platform. From 4.0.0-rc.1 through 4.15.1, ZITADEL's HTTP notification channels, OIDC BackChannel Logout, and SAML metadata URL fetches do not consistently validate user-defined URLs against protected denylist handling, allowing server-side requests to...

SUSE CVE-2026-55672

ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's OAuth2 and OIDC CodeExchange, RefreshToken, and device token flows fail to verify that the requesting client matches the client that initiated the authorization flow, allowing intercepted grants or refre...

EEF-CVE-2026-65635 Boruta dynamic client registration allows creation of over-privileged OAuth clients

Summary 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...

CVE-2026-65635 Boruta dynamic client registration allows creation of over-privileged OAuth clients

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.registerclient/3 forwards caller-supplied...

EUVD-2026-51143

Server-Side Request Forgery vulnerability in malach-it Boruta allows an unauthenticated remote attacker to cause the OAuth/OpenID authorization server to issue outbound HTTP requests to attacker-chosen URIs, including internal services and cloud metadata endpoints. Three code paths fetch remote...

CVE-2026-18353

PIA's POST /v1/upload/sbom endpoint accepts a Bearer JWT and checks its unverified iss claim against an issuer allowlist using Python's urlparse before performing OIDC discovery with requests. Because urlparse and requests/urllib3 parse an authority string containing a backslash e.g...

CVE-2026-18353 Unauthenticated SSRF in PIA via OIDC issuer allowlist bypass

PIA's POST /v1/upload/sbom endpoint accepts a Bearer JWT and checks its unverified iss claim against an issuer allowlist using Python's urlparse before performing OIDC discovery with requests. Because urlparse and requests/urllib3 parse an authority string containing a backslash e.g...

CVE-2026-18353

PIA’s POST /v1/upload/sbom validates a Bearer JWT by checking the unverified iss against an issuer allowlist using urlparse, then performs OIDC discovery with requests. A backslash in the authority (e.g., https://[email protected]/) is parsed into different hostnames, enabling an attac...

CVE-2026-48058

Summary of CVE-2026-48058 (nebula-mesh) nebula-mesh (Slack Nebula mesh control plane) versions prior to 0.3.2 expose a cookie security flaw: internal/web/session.go and internal/web/oidc.go set HttpOnly and SameSite=Lax on cookies but omit the Secure attribute. A plaintext HTTP request to the ori...

DEBIAN-CVE-2026-54603

OAuth2 is a Ruby wrapper for the OAuth 2.0 and 2.1 authorization frameworks, including OpenID Connect OIDC. From 0.4.0 to 2.0.21, a protocol-relative redirect Location returned to OAuth2::Clientrequest overrides the request authority, so the bearer Authorization header is sent to an...

CVE-2026-54603

OAuth2 is a Ruby wrapper for the OAuth 2.0 and 2.1 authorization frameworks, including OpenID Connect OIDC. From 0.4.0 to 2.0.21, a protocol-relative redirect Location returned to OAuth2::Clientrequest overrides the request authority, so the bearer Authorization header is sent to an...