# CVE-2026-15972

## Summary

- **CVE ID:** CVE-2026-15972
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** CWE-770
- **Published:** Aug 7, 2026
- **Last Modified:** Aug 10, 2026

## Description

Consul Community Edition and Consul Enterprise 1.13.0 through 2.0.2 are vulnerable to an unauthenticated denial of service through unbounded connection acceptance on the external gRPC listeners. A remote attacker may exhaust agent file descriptors, goroutines, and memory by opening many incomplete connections, potentially preventing legitimate clients from connecting. This vulnerability, CVE-2026-15972, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.

## Affected Products

- HashiCorp — Consul (1.13.0)
- HashiCorp — Consul Enterprise (1.13.0)

## References

- [CNA](https://discuss.hashicorp.com/t/hcsec-2026-25-multiple-vulnerabilities-impacting-hashicorp-consul/77629)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.39%
- **EPSS Percentile:** 32.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._