discuss.hashicorp.com
https://discuss.hashicorp.com/t/hcsec-2026-25-multiple-vulnerabilities-impacting-hashicorp-consul/77629 CVE-2026-15970
MEDIUM
L7 intention authorization bypass via custom public listener
Record summary
CVE-2026-15970 has a selected CVSS score of 4.2 (medium).
Description
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.
Description source: CVE List
Exploitation context
CISA SSVC decision
ExploitationNone
AutomatableNo
Technical impactPartial
CISA Coordinator · SSVC 2.0.3 · Evaluated Aug 10, 2026 · Source: CVE List
Affected products and versions
2| Product | Source | Version range | Status |
|---|---|---|---|
Default status: unaffected | CVE List | 1.20.1 to < 2.0.3 | affected |
Consul EnterpriseBrowse HashiCorp / Consul EnterpriseDefault status: unaffected | CVE List | 1.20.1 to < 2.0.3 | affected |
References
2nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2026-15970