SUSE CVE-2026-33557

A possible security vulnerability has been identified in Apache Kafka. By default, the broker property sasl.oauthbearer.jwt.validator.class is set to org.apache.kafka.common.security.oauthbearer.DefaultJwtValidator. It accepts any JWT token without validating its signature, issuer, or audience. A...

CVE-2026-118687

The Coder platform (versions before 2.29.21, 2.30.0 before 2.34.12, 2.35.0 before 2.35.9, 2.36.0 before 2.36.7, and 2.37.0 before 2.37.4) fails to validate the audience claim of GCE instance-identity JWTs at the POST /api/v2/workspaceagents/google-instance-identity endpoint. This vulnerability al...

CVE-2026-110952 Apache Kafka: Broker does not enforce JWT issuer and audience validation for SASL/OAUTHBEARER by default

A Kafka broker that authenticates clients with SASL/OAUTHBEARER using the bundled JWKS-backed validator always verifies the JWT signature, but two further checks are only performed when explicitly configured: - The issuer iss claim is verified only when sasl.oauthbearer.expected.issuer is set. Wh...

CVE-2026-110952

An Apache Kafka broker using SASL/OAUTHBEARER with the bundled JWKS-backed validator fails to enforce issuer (iss) and audience (aud) claim checks by default. While JWT signatures are always verified, the absence of explicit configuration for sasl.oauthbearer.expected.issuer and sasl.oauthbearer....

CVE-2026-115413

Missing token audience validation in the OAuth authentication mode of AWS API MCP Server before version 1.6.0 might allow local users to run AWS operations with the server's configured AWS credentials via an access token issued to another application by the same identity provider. To remediate th...

EUVD-2026-111349

Missing token audience validation in the OAuth authentication mode of AWS API MCP Server before version 1.6.0 might allow local users to run AWS operations with the server's configured AWS credentials via an access token issued to another application by the same identity provider. To remediate th...

CVE-2026-115413

Missing token audience validation in the OAuth authentication mode of AWS API MCP Server before version 1.6.0 might allow local users to run AWS operations with the server's configured AWS credentials via an access token issued to another application by the same identity provider. To remediate th...

CVE-2026-115413 AWS API MCP Server OAuth Token Audience Validation Bypass

Missing token audience validation in the OAuth authentication mode of AWS API MCP Server before version 1.6.0 might allow local users to run AWS operations with the server's configured AWS credentials via an access token issued to another application by the same identity provider. To remediate th...

CVE-2026-115413

The AWS API MCP Server (versions prior to 1.6.0 ) is vulnerable to an OAuth Token Audience Validation Bypass . The root cause is a failure to validate the token audience in the OAuth authentication mode. This allows a local user to execute AWS operations using the server's configured AWS credenti...

PT-2026-127197

Name of the Vulnerable Software and Affected Versions AWS API MCP Server versions prior to 1.6.0 Description In the OAuth authentication mode, the server fails to validate the token audience. While the server verifies the token signature, issuer, and expiry, it does not check if the token was...

Incomplete List of Disallowed Inputs

Overview authlib is a library in building OAuth and OpenID Connect servers. Affected versions of this package are vulnerable to Incomplete List of Disallowed Inputs via JWTBearerGrant.verifyclaims in authlib/oauth2/rfc7523/jwtbearer.py, where audience validation is skipped when getaudiences retur...

Improper Validation of Integrity Check Value

Overview authlib is a library in building OAuth and OpenID Connect servers. Affected versions of this package are vulnerable to Improper Validation of Integrity Check Value via the verifyclaims method in JWTBearerGrant, when getaudiences returns an empty list. Prior to the fix, an unconfigured or...

EUVD-2026-93990

Backstage: Insufficient audience validation in the Cloudflare Access auth provider...

GHSA-Q333-F498-W2X7 Backstage: Insufficient audience validation in the Cloudflare Access auth provider

Impact The Cloudflare Access auth provider verifies a token's signature and team issuer, but affected versions do not verify that the token was issued for the Backstage application. A user holding a valid token for another Access application in the same Cloudflare Zero Trust team may therefore be...

Backstage: Insufficient audience validation in the Cloudflare Access auth provider

Impact The Cloudflare Access auth provider verifies a token's signature and team issuer, but affected versions do not verify that the token was issued for the Backstage application. A user holding a valid token for another Access application in the same Cloudflare Zero Trust team may therefore be...

CVE-2026-106457

Backstage is an open framework for building developer portals. From 0.1.0 until 0.5.0, the @backstage/plugin-auth-backend-module-cloudflare-access-provider package is affected by insufficient audience validation in the cloudflare access auth provider. The Cloudflare Access auth provider verifies ...

CVE-2026-106457 Backstage: Insufficient audience validation in the Cloudflare Access auth provider

Backstage is an open framework for building developer portals. From 0.1.0 until 0.5.0, the @backstage/plugin-auth-backend-module-cloudflare-access-provider package is affected by insufficient audience validation in the cloudflare access auth provider. The Cloudflare Access auth provider verifies ...

CVE-2026-106457

The @backstage/plugin-auth-backend-module-cloudflare-access-provider package (versions >=0.1.6-next.2 and

CVE-2026-106457

Backstage is an open framework for building developer portals. From 0.1.0 until 0.5.0, the @backstage/plugin-auth-backend-module-cloudflare-access-provider package is affected by insufficient audience validation in the cloudflare access auth provider. The Cloudflare Access auth provider verifies ...

CVE-2026-106457 Backstage: Insufficient audience validation in the Cloudflare Access auth provider

Backstage is an open framework for building developer portals. From 0.1.0 until 0.5.0, the @backstage/plugin-auth-backend-module-cloudflare-access-provider package is affected by insufficient audience validation in the cloudflare access auth provider. The Cloudflare Access auth provider verifies ...