Advisoriesby IbisHashiCorpCVE-2026-105765
HashiCorp Consul: missing authorization
Fix: upgrade to 2.1.0 or later (2 fixed versions below)
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Consul Product | >= 1.17.0, < 2.1.0 | 2.1.0 |
| Consul Enterprise Product | >= 1.17.0, < 2.1.0 | 2.1.0 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-862