{"id":"CVE-2021-36213","details":"HashiCorp Consul and Consul Enterprise 1.9.0 through 1.10.0 default deny policy with a single L7 application-aware intention deny action cancels out, causing the intention to incorrectly fail open, allowing L4 traffic. Fixed in 1.9.8 and 1.10.1.","aliases":["BIT-consul-2021-36213","GHSA-8h2g-r292-j8xh","GO-2022-0895"],"modified":"2026-04-10T04:35:27.662133Z","published":"2021-07-17T18:15:07.820Z","related":["CGA-w2w6-j65x-9wjw"],"references":[{"type":"ADVISORY","url":"https://discuss.hashicorp.com/t/hcsec-2021-16-consul-s-application-aware-intentions-deny-action-fails-open-when-combined-with-default-deny-policy/26855"},{"type":"ADVISORY","url":"https://github.com/hashicorp/consul/releases/tag/v1.10.1"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202208-09"},{"type":"ADVISORY","url":"https://www.hashicorp.com/blog/category/consul"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/hashicorp/consul","events":[{"introduced":"a417fe51040a33039d3282e31c6c6b6f4fd1f886"},{"fixed":"debb13e91861642efe80f19440ab6fecf4b93be8"},{"introduced":"a417fe51040a33039d3282e31c6c6b6f4fd1f886"},{"fixed":"debb13e91861642efe80f19440ab6fecf4b93be8"},{"introduced":"27de64da7095570012e9f8f7aec16aaf66d2a773"},{"fixed":"db839f18ba4796df77601bfe9873756ed340525d"},{"introduced":"27de64da7095570012e9f8f7aec16aaf66d2a773"},{"fixed":"db839f18ba4796df77601bfe9873756ed340525d"}],"database_specific":{"versions":[{"introduced":"1.9.0"},{"fixed":"1.9.8"},{"introduced":"1.9.0"},{"fixed":"1.9.8"},{"introduced":"1.10.0"},{"fixed":"1.10.1"},{"introduced":"1.10.0"},{"fixed":"1.10.1"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36213.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}