What is CVE-2026-15970?

CVE-2026-15970 is a medium-severity vulnerability in Hashicorp Consul, classified under CWE-647. CVSS score: 4.2/10. Published 2026-08-07.

How severe is CVE-2026-15970?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Vulnerability in Hashicorp Consul

CVE-2026-15970

Consul Community Edition and Consul Enterprise 1.20.1 through 2.0.2 are vulnerable to an L7 intention authorization bypass when a service proxy is configured with a custom public listener. An authenticated mesh workload may reach HTTP path…

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Hashicorp Consul — versions 1.20.1
Hashicorp Consul Enterprise — versions 1.20.1

Weakness classification (CWE)

CWE-647

References

security@hashicorp.com

Frequently asked questions

What is CVE-2026-15970?: CVE-2026-15970 is a medium-severity vulnerability in Hashicorp Consul, classified under CWE-647. CVSS score: 4.2/10. Published 2026-08-07.
How severe is CVE-2026-15970?: Medium severity. CVSS v3 base score is 4.2 out of 10.