VULNERABILITY INTELLIGENCE

CVE-2021-23018

CVSS score7.4 HIGH
EPSS probability0.54%
CISA KEVNot currently listed
Published2021-06-01
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Description

Intra-cluster communication does not use TLS. The services within the NGINX Controller 3.x before 3.4.0 namespace are using cleartext protocols inside the cluster.

Weakness classification

  • f5sirt@f5.com: CWE-319
  • nvd@nist.gov: CWE-319

Primary references