CVE-2026-84303
2026-09-01
19h17 +00:00
19h17 +00:00
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Mô tả CVE
gRPC-Go is the Go language implementation of gRPC. Prior to 1.83.1, the xDS RBAC HTTP filter in internal/xds/httpfilter/rbac/rbac.go does not lowercase header matcher names in normalizeHeaderMatcher even though incoming metadata keys are lowercase. A DENY policy using a mixed-case name such as X-Role or User-Agent therefore does not match and fails open, allowing requests that should be rejected. The same case mismatch permits :Scheme or Grpc-Status to evade gRFC A41 validation and prevents Host from being rewritten to :authority. This issue is fixed in version 1.83.1.
Thông tin CVE
Điểm yếu liên quan
| Tên điểm yếu | Nguồn | |
|---|---|---|
| Improper Handling of Case Sensitivity The product does not properly account for differences in case sensitivity when accessing or determining the properties of a resource, leading to inconsistent results. |
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| Incorrect Authorization The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. |
