CVE-2026-19017 — Consul vulnerable to partial arbitrary file read via Vault Connect CA provider

Description (CNA)

Consul Community Edition and Consul Enterprise 1.18.21 through 2.0.2 are vulnerable to a partial arbitrary file read when configured to use the Vault Connect CA provider with JWT or AppRole authentication. A privileged attacker with `operator:write` permission may direct Consul to read and forward credential files outside the intended scope, potentially leading to the exfiltration of sensitive secrets from the Consul server host. This vulnerability, CVE-2026-19017, 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 1.18.21 before 2.0.3
HashiCorp / Consul Enterprise	affected 1.18.21 before 2.0.3

CWE

CWE-862

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.