Field Level Security Vulnerability in X-Pack Security 5.2.x

CVE-2017-8449 · MEDIUM Severity

AV:N/AC:M/AU:N/C:P/I:N/A:N

X-Pack Security 5.2.x would allow access to more fields than the user should have seen if the field level security rules used a mix of grant and exclude rules when merging multiple rules with field level security rules for the same index.

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