Consul Agent LEAF Cert API Auth Bypass Allow Private Key Leak (1.17.0-2.1.0)
CVE-2026-105765 Published on October 26, 2026
Consul vulnerable to an authorization bypass in the agent's service mesh leaf certificate API
HashiCorp Consul and Consul Enterprise 1.17.0 up to 2.0.4 are vulnerable to an authorization bypass in the agent's service mesh leaf certificate API that may allow an attacker without a valid ACL token to retrieve a cached service leaf certificate and its private key. This vulnerability (CVE-2026-105765) is fixed in Consul Community Edition 2.1.0 and Consul Enterprise 2.1.0 and 1.21.19.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-105765 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-105765
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Affected Versions
HashiCorp Consul:- Version 1.17.0 and below 2.1.0 is affected.
- Version 1.17.0 and below 2.1.0 is affected.