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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.

PUBLISHED Reserved 2026-04-16 | Published 2026-04-28 | Updated 2026-04-28 | Assigner vmware




LOW: 3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Problem types

CWE-209: Generation of Error Message Containing Sensitive Information

Product status

Default status
unaffected

1.0.0 (custom) before 1.0.3
affected

References

spring.io/security/cve-2026-40969

cve.org (CVE-2026-40969)

nvd.nist.gov (CVE-2026-40969)

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