Vulnerability in Spring Grpc

CVE-2026-40968

When an authenticated user is denied access to a gRPC method, their authenticated identity remains bound to the gRPC worker thread and can be inherited by a subsequent unauthenticated request on the same thread. This may allow the subseque…

EPSS: 0.000 (13.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-40968?
CVE-2026-40968 is a medium-severity vulnerability in Spring Grpc, classified under CWE-653. CVSS score: 4.2/10. Published 2026-04-28.
How severe is CVE-2026-40968?
Medium severity. CVSS v3 base score is 4.2 out of 10.