← back
CVE-2026-40969

Spring gRPC AuthenticationException message reflected to remote client

CVSS 3.7 LOWEPSS 0.2%CWE-209
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products
Spring · Spring gRPC

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →