CVE-2026-40968 (GCVE-0-2026-40968)
Vulnerability from cvelistv5
Published
2026-04-28 13:42
Modified
2026-04-28 14:36
Severity ?
4.2 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE
  • CWE-653 - Improper Isolation or Compartmentalization
Summary
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.
References
Impacted products
Vendor Product Version
Spring Spring gRPC Version: 1.0.0   < 1.0.3
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