The raw message of every server-side AuthenticationException is returned to the unauthenticated remote caller in the gRPC status description.

Code

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No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Apr 28, 2026 · NIST NVD

   Detected

   The raw message of every server-side AuthenticationException is returned to the unauthenticated remote caller in the gRPC status description. This allows an attacker to obtain information about the authentication failure, which may be useful for further attacks. Affected versions: Spring gRPC: 1.0.0 - 1.0.2 (fixed in 1.0.3). Older, unsupported versions are also affected.

2. Jun 17, 2026 · NIST NVD

   Updated

   The raw message of every server-side AuthenticationException is returned to the unauthenticated remote caller in the gRPC status description. This allows an attacker to obtain information about the authentication failure, which may be useful for further attacks. Affected versions: Spring gRPC: 1.0.0 - 1.0.2 (fixed in 1.0.3). Older, unsupported versions are also affected.

Affected

• cpe vmware/spring grpcversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-40969

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-40969

  The raw message of every server-side AuthenticationException is returned to the unauthenticated remote caller in the gRPC status description. This allows an attacker to obtain information about the authentication failure, which may be useful for further attacks. Affected version

  nvd.nist.gov

References

• Vendor Advisory · spring.io