UpHeron
All vulnerabilities

Servers and applications

CVE-2018-16886

etcd versions 3.2.x before 3.2.26 and 3.3.x before 3.3.11 are vulnerable to an improper authentication issue when role-based access control (RBAC) is used and client-cert-auth is enabled. If an etcd client server TLS certificate contains a Common Name (CN) which matches a valid RBAC username, a remote attacker may authenticate as that user with any valid (trusted) client certificate in a REST…

Severity
High 8.1
Published
14 Jan 2019
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
3.2.26, 3.3.11
Exploit chance
4.1% in the next 30 daysHigher than 90% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
etcdServers and applications · cpe:a:etcd:etcd
  • From 3.2.0 before 3.2.26
  • From 3.3.0 before 3.3.11

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-16886
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-16886