PT-2026-35740 · Spring · Spring Grpc

Published 2026-04-28 · Updated 2026-04-28 · CVE-2026-40969

NVD

CVSS v3.1

3.7

Low

AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

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.

Fix

Generation of Error Message Containing Sensitive Information

Weakness Enumeration

CWE-209

Related Identifiers

CVE-2026-40969

Affected Products

Spring Grpc

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-40969 · Security Note
• https://spring.io/security/cve-2026-40969 · Note