6 Reasons Why Device Code Phishing is the Fastest-Growing Threat of 2026

Device code phishing - the abuse of the OAuth 2.0 device authorization grant to steal access tokens - has evolved from a niche red-team technique to an industrial-scale threat in under six months. Designed for input-constrained devices like smart TVs, printers, and so on, the device authorization...

CVE-2026-55502

Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, POST /api/v4/admin/policy/oauth/signin requires only Admin.Read even though GetOauthRedirectService persists caller-supplied OneDrive secret and appid values, allowing an OAuth token without Admin.Write to modify...

CVE-2026-55502 Cloudreve: OAuth Admin.Read scope can update OneDrive storage policy credentials

Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, POST /api/v4/admin/policy/oauth/signin requires only Admin.Read even though GetOauthRedirectService persists caller-supplied OneDrive secret and appid values, allowing an OAuth token without Admin.Write to modify...

EUVD-2026-51394

Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, POST /api/v4/admin/policy/oauth/signin requires only Admin.Read even though GetOauthRedirectService persists caller-supplied OneDrive secret and appid values, allowing an OAuth token without Admin.Write to modify...

CVE-2026-55502 Cloudreve: OAuth Admin.Read scope can update OneDrive storage policy credentials

Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, POST /api/v4/admin/policy/oauth/signin requires only Admin.Read even though GetOauthRedirectService persists caller-supplied OneDrive secret and appid values, allowing an OAuth token without Admin.Write to modify...

CVE-2026-14541

An authentication bypass and audience confusion vulnerability exists in the Google OAuth provider component of Google mcp-toolbox version 1.4.0. When a Google authService is initialized with mcpEnabled: true but lacks an explicitly defined audience or clientId, the ValidateMCPAuth pipeline for...

CVE-2026-14541 Authentication Bypass and Audience Confusion in MCP Toolbox OAuth Provider

An authentication bypass and audience confusion vulnerability exists in the Google OAuth provider component of Google mcp-toolbox version 1.4.0. When a Google authService is initialized with mcpEnabled: true but lacks an explicitly defined audience or clientId, the ValidateMCPAuth pipeline for...

SUSE CVE-2026-53523

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 1.0.0 to before version 2.2.0, the getRedirectURL function in oauth2.go:22-29 constructs the OAuth2 callback URL by concatenating the request's Host header with a fixed path, with zero...

SUSE CVE-2026-54560

Cloudreve is a self-hosted file management and sharing system. From 4.12.0 until 4.16.1, Cloudreve's OAuth access tokens are issued without the OAuth clientid claim, so the JWT verifier does not load token scopes into request context and RequiredScopes treats the request like non-scoped session...

SUSE CVE-2026-58422

Improper authorization on OAuth sign-in callback silently re-enables administrator-disabled accounts...

CVE-2026-67345 MaxKey 4.1.12 DefaultRedirectResolver OAuth Authorization Code Theft

MaxKey through 4.1.12, fixed in commit ddbb72f, contains an insufficient redirect URI validation vulnerability in DefaultRedirectResolver.hostMatches that allows remote attackers to hijack OAuth 2.0 authorization codes by supplying a crafted redirecturi whose hostname suffix matches a registered...

EUVD-2026-50563

OliveTin: Unauthenticated DoS via OAuth2 State Memory Exhaustion Unbounded Map Growth...

EUVD-2026-51145

Authentication Bypass by Capture-replay vulnerability in malach-it Boruta allows an attacker who has obtained a previously valid JWT client assertion to authenticate as the issuing OAuth client after the assertion has expired. Boruta accepts JWT-based client authentication clientsecretjwt and...

EEF-CVE-2026-54885 Server-side request forgery in Boruta OAuth request_uri and OpenID jwks_uri fetching

Summary 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...

CVE-2026-54885 Server-side request forgery in Boruta OAuth request_uri and OpenID jwks_uri fetching

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-2026-54885

Boruta exposes a Server-Side Request Forgery (SSRF) in its OAuth/OpenID flow. Three code paths fetch URIs supplied by the requester (request_uri and jwks_uri) with minimal validation: only scheme presence, no HTTPS enforcement, no host/IP allowlist, and no checks against loopback/private ranges o...

CVE-2026-18382

A flaw was found in koku-metrics-operator. The operator's CostManagementMetricsConfig custom resource allows a user able to edit the CR to specify an arbitrary OAuth token endpoint. When authentication.type is set to service-account, the operator sends the tenant's Red Hat SSO clientid and...

EUVD-2026-51095

A flaw was found in koku-metrics-operator. The operator's CostManagementMetricsConfig custom resource allows a user able to edit the CR to specify an arbitrary OAuth token endpoint. When authentication.type is set to service-account, the operator sends the tenant's Red Hat SSO clientid and...

CVE-2026-18382 Project-koku/koku-metrics-operator: koku-metrics-operator: service-account client credentials sent to user-controlled token_url

A flaw was found in koku-metrics-operator. The operator's CostManagementMetricsConfig custom resource allows a user able to edit the CR to specify an arbitrary OAuth token endpoint. When authentication.type is set to service-account, the operator sends the tenant's Red Hat SSO clientid and...

CVE-2026-18382

A flaw was found in koku-metrics-operator. The operator's CostManagementMetricsConfig custom resource allows a user able to edit the CR to specify an arbitrary OAuth token endpoint. When authentication.type is set to service-account, the operator sends the tenant's Red Hat SSO clientid and...