GO-2026-5314 OAuth2 Proxy has an Authorization Bypass in Email Domain Validation via Malformed Multi-@ Email Claims in github.com/oauth2-proxy/oauth2-proxy

OAuth2 Proxy has an Authorization Bypass in Email Domain Validation via Malformed Multi-@ Email Claims in github.com/oauth2-proxy/oauth2-proxy...

GO-2026-5236 OAuth2 Proxy has an Authentication Bypass via X-Forwarded-Uri Header Spoofing in github.com/oauth2-proxy/oauth2-proxy

OAuth2 Proxy has an Authentication Bypass via X-Forwarded-Uri Header Spoofing in github.com/oauth2-proxy/oauth2-proxy...

GO-2026-5147 OAuth2 Proxy's Health Check User-Agent Matching Bypasses Authentication in auth_request Mode in github.com/oauth2-proxy/oauth2-proxy

OAuth2 Proxy's Health Check User-Agent Matching Bypasses Authentication in authrequest Mode in github.com/oauth2-proxy/oauth2-proxy...

CVE-2026-9733

Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter. When no state generator is specified in the constructor, the module defaults to using a SHA-1 hash of predictable and low-entropy sources, including the epoch time which is leaked via t...

CVE-2026-9733

CVE-2026-9733 affects Mojolicious::Plugin::Web::Auth::OAuth2 (Perl) versions up to 0.17. The insecure default state parameter arises from a SHA-1 based generator that uses epoch time (revealed via HTTP Date) and Perl rand, enabling CSRF session hijacking. A patch exists (Mojolicious-Plugin-Web-Au...

EUVD-2026-38421

Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter. When no state generator is specified in the constructor, the module defaults to using a SHA-1 hash of predictable and low-entropy sources, including the epoch time which is leaked via t...

CVE-2026-9733 Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter

Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter. When no state generator is specified in the constructor, the module defaults to using a SHA-1 hash of predictable and low-entropy sources, including the epoch time which is leaked via t...

ROOT-APP-GOBINARY-CVE-2025-22868 CVE-2025-22868 in rootio-golang.org/x/oauth2 - Patched by Root

Root has patched CVE-2025-22868 in the rootio-golang.org/x/oauth2 package for Root:Go. Multiple fixed versions available...

Gitea: OAuth2 access token scope enforcement bypass via HTTP Basic authentication

Summary Gitea fails to enforce OAuth2 access token scopes when the token is submitted via HTTP Basic authentication instead of a Bearer token. An OAuth2 application granted only read:user can use the same token as Authorization: Basic base64:x-oauth-basic and perform write actions, including...

GHSA-9R5X-WG6M-X2RC Gitea: OAuth2 access token scope enforcement bypass via HTTP Basic authentication

Summary Gitea fails to enforce OAuth2 access token scopes when the token is submitted via HTTP Basic authentication instead of a Bearer token. An OAuth2 application granted only read:user can use the same token as Authorization: Basic base64:x-oauth-basic and perform write actions, including...

Nodemailer: Improper TLS Certificate Validation in OAuth2 Token Fetch Enables Credential Interception

Summary Nodemailer disables TLS certificate verification in its internal HTTPS fetch client through the use of rejectUnauthorized: false inside lib/fetch/index.js. As a result, OAuth2 token requests trust invalid or self-signed HTTPS certificates and transmit sensitive OAuth credentials over...

CVE-2026-49757 OAuth2/OIDC account takeover in AshAuthentication via email-based user matching

Authentication Bypass by Spoofing vulnerability in team-alembic AshAuthentication allows account takeover of local users via OAuth2/OIDC sign-in. AshAuthentication's OAuth2 and OIDC family strategies matched the local user by email address an upsert on the email field, or a user-defined sign-in...

Open Redirect

Overview Affected versions of this package are vulnerable to Open Redirect via the getRedirectURL function. An attacker can redirect users to arbitrary domains by supplying a crafted Host header during the OAuth2 authentication process. Remediation Upgrade...

Apache CXF OAuth2 HTTP Response Splitting via WWW-Authenticate Realm Injection

A CRLF injection vulnerability exists in the OAuth2 AuthorizationUtils class. When constructing the WWW-Authenticate response header, the 'realm' parameter is concatenated without sanitizing Carriage Return CR and Line Feed LF characters. If an attacker can control the realm value, they can injec...

GHSA-G5V7-JCHF-7JRR Apache CXF OAuth2 has Inverted IP Binding Check that Defeats Security Control

A logic error in OAuthRequestFilter rejects legitimate requests originating from the bound IP address, while blindly allowing requests from any other IP address. Enabling this security feature inadvertently creates an inverse security check. Users are recommended to upgrade to versions 4.2.2 or...

Apache CXF OAuth2 Log Injection via Unsanitized Client Identifier

The 'clientId' parameter from incoming HTTP requests is directly concatenated into OAuth2 server log warning messages without sanitizing control characters. This allows an attacker to inject arbitrary content, including fake log entries, into the server's log files. Users are recommended to upgra...

Apache CXF has Authentication Bypass in OAuth2 TokenIntrospectionService

An authentication bypass vulnerability exists in the OAuth2 TokenIntrospectionService in Apache CXF. Due to a missing 'throw' keyword in the security context check, the introspection endpoint /services/oauth2/introspect can be accessed by any unauthenticated network attacker. However note that th...

Apache CXF OAuth2 has Inverted IP Binding Check that Defeats Security Control

A logic error in OAuthRequestFilter rejects legitimate requests originating from the bound IP address, while blindly allowing requests from any other IP address. Enabling this security feature inadvertently creates an inverse security check. Users are recommended to upgrade to versions 4.2.2 or...

Improperly Implemented Security Check for Standard

Overview org.apache.cxf:cxf-rt-rs-security-oauth2 is a services framework. Affected versions of this package are vulnerable to Improperly Implemented Security Check for Standard due to a logic error in the OAuthRequestFilter request handler. An attacker can bypass intended IP address restrictions...

CVE-2026-50629

The 'clientId' parameter from incoming HTTP requests is directly concatenated into OAuth2 server log warning messages without sanitizing control characters. This allows an attacker to inject arbitrary content, including fake log entries, into the server's log files. Users are recommended to upgra...