CVE-2026-63127 RMCP: Missing Resource Field Validation in OAuth Protected Resource Metadata Discovery

RMCP is an official Rust SDK for the Model Context Protocol. Prior to 2.0.0, the rmcp crate's OAuth implementation in crates/rmcp/src/transport/auth.rs omits the RFC 9728 resource field from ResourceServerMetadata and allows discoveroauthserverviaresourcemetadata to use protected-resource metadat...

EUVD-2026-80824

RMCP is an official Rust SDK for the Model Context Protocol. Prior to 2.0.0, the rmcp crate's OAuth implementation in crates/rmcp/src/transport/auth.rs omits the RFC 9728 resource field from ResourceServerMetadata and allows discoveroauthserverviaresourcemetadata to use protected-resource metadat...

CVE-2026-92138

The OAuth authorization endpoint in Jenkins Bitbucket Server Integration Plugin 6.0.1 and earlier reads the oauthcallback URL from the submitted form rather than from the server-side stored request token, allowing attackers to hijack the OAuth flow and obtain an access token on behalf of the vict...

CVE-2026-92138

The Jenkins Bitbucket Server Integration Plugin (atlassian-bitbucket-server-integration) versions 6.0.1 and earlier is vulnerable to an OAuth access token hijacking flaw. The OAuth authorization endpoint incorrectly reads the oauth_callback URL from the submitted form instead of using the server-...

CVE-2026-92138

The OAuth authorization endpoint in Jenkins Bitbucket Server Integration Plugin 6.0.1 and earlier reads the oauthcallback URL from the submitted form rather than from the server-side stored request token, allowing attackers to hijack the OAuth flow and obtain an access token on behalf of the vict...

EUVD-2026-80762

The OAuth authorization endpoint in Jenkins Bitbucket Server Integration Plugin 6.0.1 and earlier reads the oauthcallback URL from the submitted form rather than from the server-side stored request token, allowing attackers to hijack the OAuth flow and obtain an access token on behalf of the vict...

CVE-2026-92138

The OAuth authorization endpoint in Jenkins Bitbucket Server Integration Plugin 6.0.1 and earlier reads the oauthcallback URL from the submitted form rather than from the server-side stored request token, allowing attackers to hijack the OAuth flow and obtain an access token on behalf of the vict...

CVE-2026-86466

Apache Airflow FAB provider: the Authentik OAuth path in the FAB auth manager does not validate the issuer or audience claims of the idtoken it accepts. An attacker holding a token that the same Authentik identity provider minted for a different client application can present it to Airflow and be...

CVE-2026-86466 Apache Airflow FAB provider: FAB Authentik provider: id_token issuer/audience not validated

Apache Airflow FAB provider: the Authentik OAuth path in the FAB auth manager does not validate the issuer or audience claims of the idtoken it accepts. An attacker holding a token that the same Authentik identity provider minted for a different client application can present it to Airflow and be...

CVE-2026-86466 Apache Airflow FAB provider: FAB Authentik provider: id_token issuer/audience not validated

Apache Airflow FAB provider: the Authentik OAuth path in the FAB auth manager does not validate the issuer or audience claims of the idtoken it accepts. An attacker holding a token that the same Authentik identity provider minted for a different client application can present it to Airflow and be...

EUVD-2026-80327

Apache Airflow FAB provider: the Authentik OAuth path in the FAB auth manager does not validate the issuer or audience claims of the idtoken it accepts. An attacker holding a token that the same Authentik identity provider minted for a different client application can present it to Airflow and be...

CVE-2026-92138: Insufficient Verification of Data Authenticity

The OAuth authorization endpoint in Jenkins Bitbucket Server Integration Plugin 6.0.1 and earlier reads the oauthcallback URL from the submitted form rather than from the server-side stored request token, allowing attackers to hijack the OAuth flow and obtain an access token on behalf of the vict...

CVE-2026-85387: Insufficient Session Expiration

Concrete CMS before 9.5.4 re-authorized OAuth REST API requests from the bearer token alone and did not re-check the state of the account the token had been issued to. The resource server's authorization validator confirmed only that a token existed, had not expired, and had not been explicitly...

PT-2026-93781

Name of the Vulnerable Software and Affected Versions Jenkins Bitbucket Server Integration Plugin versions prior to 6.0.2 Description The OAuth authorization endpoint reads the oauth callback URL from the submitted form instead of using the server-side stored request token. This flaw allows...

PT-2026-93873

Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.5.4 Description The software re-authorized OAuth REST API requests based solely on the bearer token without verifying the current state of the associated account. The authorization validator only checked if the...

CVE-2026-63127: Insufficient Verification of Data Authenticity

RMCP is an official Rust SDK for the Model Context Protocol. Prior to 2.0.0, the rmcp crate's OAuth implementation in crates/rmcp/src/transport/auth.rs omits the RFC 9728 resource field from ResourceServerMetadata and allows discoveroauthserverviaresourcemetadata to use protected-resource metadat...

PT-2026-93421

Name of the Vulnerable Software and Affected Versions apache-airflow-providers-fab versions prior to 3.9.0 Description The Authentik OAuth path in the FAB auth manager fails to validate the issuer or audience claims of the accepted id token. This allows an attacker who possesses a valid token...

Characterizing Network Centralization and Observability in the Remote MCP Ecosystem

The Model Context Protocol MCP has emerged as the dominant interface for connecting autonomous agents to external data sources and execution environments. The ecosystem's transition from local process execution to remote Streamable HTTP deployments introduces unmeasured architectural and security...

CVE-2026-86466: Origin Validation Error

Apache Airflow FAB provider: the Authentik OAuth path in the FAB auth manager does not validate the issuer or audience claims of the idtoken it accepts. An attacker holding a token that the same Authentik identity provider minted for a different client application can present it to Airflow and be...

OAuth access token hijacking via callback URL manipulation in atlassian-bitbucket-server-integration

atlassian-bitbucket-server-integration implements an OAuth provider for Bitbucket Server. The OAuth authorization endpoint in atlassian-bitbucket-server-integration 6.0.1 and earlier reads the oauthcallback URL from the submitted form rather than from the server-side stored request token. An...