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Vulnerabilities

CVE-2026-40968 | BDVDB-2026-329474 Detail

SpringSpring gRPC

Description#

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 subsequent user to gain escalated permissions. Affected versions: Spring gRPC: 1.0.0 - 1.0.2 (fixed in 1.0.3). Older, unsupported versions are also affected.

Impact#

A subsequent request on the same gRPC worker thread may inherit a prior user’s authenticated identity after an authorization failure, enabling privilege escalation (CVSS v3.1: low confidentiality and integrity impact).

Weaknesses#

  • CWE-653 Improper Isolation or Compartmentalization

References#

Exploit#

No public exploit known

History#

  1. Version 1Record published in the CVE List.