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CVE PROGRAM SOURCE RECORD3.7 Low

CVE-2026-40969

Spring gRPC AuthenticationException message reflected to remote client

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Spring Spring gRPC

Default version status: unaffected

  • 1.0.0 to < 1.0.3affected

References