Vulnerabilities affecting this package (0)
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This package is not known to be affected by vulnerabilities.
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Vulnerabilities fixed by this package (1)
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VCID-du5r-hn2a-rfe1
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Improper Handling of TLS Client Authentication Failure Leading to Anonymous Principal Assignment in Apache Storm
Versions Affected: up to 2.8.7
Description: When TLS transport is enabled in Apache Storm without requiring client certificate authentication (the default configuration), the TlsTransportPlugin assigns a fallback principal (CN=ANONYMOUS) if no client certificate is presented or if certificate verification fails. The underlying SSLPeerUnverifiedException is caught and suppressed rather than rejecting the connection.
This fail-open behavior means an unauthenticated client can establish a TLS connection and receive a valid principal identity. If the configured authorizer (e.g., SimpleACLAuthorizer) does not explicitly deny access to CN=ANONYMOUS, this may result in unauthorized access to Storm services. The condition is logged at debug level only, reducing visibility in production.
Impact: Unauthenticated clients may be assigned a principal identity, potentially bypassing authorization in permissive or misconfigured environments.
Mitigation: Users should upgrade to 2.8.7 in which TLS authentication failures are handled in a fail-closed manner.
Users who cannot upgrade immediately should:
- Enable mandatory client certificate authentication (nimbus.thrift.tls.client.auth.required: true)
- Ensure authorization rules explicitly deny access to CN=ANONYMOUS
- Review all ACL configurations for implicit default-allow behavior
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CVE-2026-41081
GHSA-j2q8-xx3q-8fqh
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