CVE-2026-15970 — L7 intention authorization bypass via custom public listener

CVE-2026-15970

L7 intention authorization bypass via custom public listener PUBLISHED

Description (CNA)

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 paths that are blocked by a path-based deny intention. This vulnerability, CVE-2026-15970, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.

Affected (CNA)

Vendor / product	Versions
HashiCorp / Consul	affected 1.20.1 before 2.0.3
HashiCorp / Consul Enterprise	affected 1.20.1 before 2.0.3

CWE

CWE-647

References

https://discuss.hashicorp.com/t/hcsec-2026-25-multiple-vulnerabilities-impacting-hashicorp-consul/77629

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.