modules:
  - module: go.etcd.io/etcd
    versions:
      - fixed: 0.5.0-alpha.5.0.20190108173120-83c051b701d3
    packages:
      - package: go.etcd.io/etcd/auth
        symbols:
          - authStore.AuthInfoFromTLS
description: |
    A user can use a valid client certificate that contains a CommonName that matches a
    valid RBAC username to authenticate themselves as that user, despite lacking the
    required credentials. This may allow authentication bypass, but requires a certificate
    that is issued by a CA trusted by the server.
published: 2021-04-14T20:04:52Z
cves:
  - CVE-2018-16886
ghsas:
  - GHSA-h6xx-pmxh-3wgp
references:
  - fix: https://github.com/etcd-io/etcd/pull/10366
  - fix: https://github.com/etcd-io/etcd/commit/bf9d0d8291dc71ecbfb2690612954e1a298154b2