consulGHSA-8h2g-r292-j8xh
HashiCorp Consul L7 deny intention results in an allow action
High7.5CVE-2021-36213 · Published Jul 19, 2021 · updated Sep 10, 2026
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| github.com/hashicorp/consul Go | < 1.10.1 | 1.10.1 |
Details and references
In HashiCorp Consul before 1.10.1 (and Consul Enterprise), xds can generate a situation where a single L7 deny intention (with a default deny policy) results in an allow action.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Severity from
- GitHub (reviewed advisory)
- Also known as
- BIT-consul-2021-36213, CVE-2021-36213, GO-2022-0895
- nvd.nist.gov/vuln/detail/CVE-2021-36213
- discuss.hashicorp.com/t/hcsec-2021-16-consul-s-application-aware-intentions-deny-action-fails-open-when-combined-with-default-deny-policy/26855
- github.com/hashicorp/consul
- github.com/hashicorp/consul/releases/tag/v1.10.1
- security.gentoo.org/glsa/202208-09
- www.hashicorp.com/blog/category/consul
More consul advisories
All| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Jul 192021 | Hashicorp Consul Missing SSL Certificate Validation CVE-2021-32574High7.5fixed in 1.10.1 | High7.5 | 1.10.1 |
| Jul 282021 | Incorrect Authorization in HashiCorp Consul CVE-2020-7955Medium5.3fixed in 1.6.3 | Medium5.3 | 1.6.3 |
| Jun 232021 | Incorrect Permission Assignment for Critical Resource in Hashicorp Consul CVE-2020-12797Medium5.3fixed in 1.6.6, 1.7.4 | Medium5.3 | 1.6.6, 1.7.4 |
| Sep 82021 | HashiCorp Consul Privilege Escalation Vulnerability CVE-2021-37219High8.8fixed in 1.8.15, 1.9.9, 1.10.2 | High8.8 | 1.8.15, 1.9.9, 1.10.2 |
| Sep 82021 | HashiCorp Consul and Consul Enterprise 1.10.1 Txn.Apply endpoint allowed services to register proxies for other services, enabling access to service traffic. CVE-2021-38698Medium6.5fixed in 1.8.15, 1.9.9, 1.10.2 | Medium6.5 | 1.8.15, 1.9.9, 1.10.2 |
| May 182021 | Allocation of Resources Without Limits or Throttling in Hashicorp Consul CVE-2020-13250High7.5fixed in 1.6.6, 1.7.4 | High7.5 | 1.6.6, 1.7.4 |