Answer in brief
CVE-2021-36213 records a High severity (CVSS 7.5) vulnerability in HashiCorp Consul L7 deny intention results in an allow action. The current sources do not mark it as known exploited. The current feed maps github.com/hashicorp/consul (go). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps github.com/hashicorp/consul (go). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| github.com/hashicorp/consulgo | >=0 <1.10.1 | 1.10.1 |
Published upstream
Jul 19, 2021
Evidence: source:osv:source_dates:source-dates:recordSource modified
Sep 10, 2026
Evidence: source:osv:source_dates:source-dates:recordFirst seen by HOL
Sep 10, 2026
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.
Quoted source text, attributed separately from HOL analysis.