# CVE-2026-40969

> Vulnerability · severity: **LOW** (CVSS 3.7).

## 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.

## Key facts

- **CVE ID:** CVE-2026-40969
- **Published:** 2026-04-28
- **CVSS severity:** LOW
- **CVSS base score:** 3.7
- **CWE codes:** CWE-209

## Affected products

- `vmware:spring_grpc`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-40969

## Citation

> AI Analytics. CVE-2026-40969. Retrieved 2026-07-02 from https://api.ai-analytics.org/cve/CVE-2026-40969. Derived from NIST NVD. Licensed CC0.

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