High severity7.5NVD Advisory· Published Jul 17, 2021· Updated Jun 17, 2026
CVE-2021-36213
CVE-2021-36213
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/hashicorp/consulGo | < 1.10.1 | 1.10.1 |
Affected products
27- HashiCorp/Consuldescription
- osv-coords26 versionspkg:apk/chainguard/consul-1.15pkg:apk/chainguard/consul-1.15-oci-entrypointpkg:apk/chainguard/consul-1.15-oci-entrypoint-compatpkg:apk/chainguard/consul-1.16pkg:apk/chainguard/consul-1.16-oci-entrypointpkg:apk/chainguard/consul-1.16-oci-entrypoint-compatpkg:apk/chainguard/consul-1.17pkg:apk/chainguard/consul-1.17-fipspkg:apk/chainguard/consul-1.17-fips-oci-entrypointpkg:apk/chainguard/consul-1.17-fips-oci-entrypoint-compatpkg:apk/chainguard/consul-1.17-oci-entrypointpkg:apk/chainguard/consul-1.17-oci-entrypoint-compatpkg:apk/chainguard/k3dpkg:apk/chainguard/k3d-proxypkg:apk/chainguard/k3d-toolspkg:apk/wolfi/consul-1.15pkg:apk/wolfi/consul-1.15-oci-entrypointpkg:apk/wolfi/consul-1.15-oci-entrypoint-compatpkg:apk/wolfi/consul-1.16pkg:apk/wolfi/consul-1.16-oci-entrypointpkg:apk/wolfi/consul-1.16-oci-entrypoint-compatpkg:apk/wolfi/k3dpkg:apk/wolfi/k3d-proxypkg:apk/wolfi/k3d-toolspkg:bitnami/consulpkg:golang/github.com/hashicorp/consul
< 1.15.11-r5+ 25 more
- (no CPE)range: < 1.15.11-r5
- (no CPE)range: < 1.15.11-r5
- (no CPE)range: < 1.15.11-r5
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 5.6.0-r11
- (no CPE)range: < 5.6.0-r11
- (no CPE)range: < 5.6.0-r11
- (no CPE)range: < 1.15.11-r5
- (no CPE)range: < 1.15.11-r5
- (no CPE)range: < 1.15.11-r5
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 5.6.0-r11
- (no CPE)range: < 5.6.0-r11
- (no CPE)range: < 5.6.0-r11
- (no CPE)range: >= 1.9.0, < 1.9.8
- (no CPE)range: < 1.10.1
Patches
Vulnerability mechanics
References
6- discuss.hashicorp.com/t/hcsec-2021-16-consul-s-application-aware-intentions-deny-action-fails-open-when-combined-with-default-deny-policy/26855nvdVendor AdvisoryWEB
- github.com/advisories/GHSA-8h2g-r292-j8xhghsaADVISORY
- github.com/hashicorp/consul/releases/tag/v1.10.1nvdRelease NotesThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-36213ghsaADVISORY
- security.gentoo.org/glsa/202208-09nvdThird Party AdvisoryWEB
- www.hashicorp.com/blog/category/consulnvdProductVendor AdvisoryWEB
News mentions
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