Generation of Error Message Containing Sensitive Information Affecting org.springframework.grpc:spring-grpc-core package, versions [,1.0.3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published29 Apr 2026
- disclosed28 Apr 2026
- creditUnknown
Introduced: 28 Apr 2026
CVE-2026-40969 (opens in a new tab)How to fix?
Upgrade org.springframework.grpc:spring-grpc-core to version 1.0.3 or higher.
Overview
Affected versions of this package are vulnerable to Generation of Error Message Containing Sensitive Information due to the raw message of every server-side AuthenticationException being 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.