What is CVE-2026-15972?

CVE-2026-15972 is a high-severity vulnerability in Hashicorp Consul, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-08-07.

How severe is CVE-2026-15972?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Hashicorp Consul

CVE-2026-15972

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 des…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Hashicorp Consul — versions 1.13.0
Hashicorp Consul Enterprise — versions 1.13.0

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security@hashicorp.com

Frequently asked questions

What is CVE-2026-15972?: CVE-2026-15972 is a high-severity vulnerability in Hashicorp Consul, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-08-07.
How severe is CVE-2026-15972?: High severity. CVSS v3 base score is 7.5 out of 10.