HashiCorp security advisory (AV26-910)
Canada's Cyber Centre warns HashiCorp Consul and consul-template have authorization bypass and information disclosure flaws, urging users to apply available updates.
Advisory AV26-910 relays HashiCorp security advisories HCSEC-2026-34, HCSEC-2026-37 and HCSEC-2026-38 covering Consul and consul-template. Consul has an authorization bypass in the catalog node-write path and another in the Connect service mesh, while consul-template has an information disclosure issue in error handling. Fixed versions include Consul 2.0.4, Consul Enterprise 1.21.18 and consul-template 0.43.0. The Cyber Centre encourages users and administrators to review the linked advisories and apply updates.
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