What’s Vulnerable › Vulnerabilities
CVE-2026-105765: Consul vulnerable to an authorization bypass in the agent's service mesh leaf certificate API
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-26 · updated 2026-10-26
- Weakness: CWE-862
Description
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 products
- HashiCorp Consul: from 1.17.0 before 2.1.0 — fixed in 2.1.0
- HashiCorp Consul Enterprise: from 1.17.0 before 2.1.0 — fixed in 2.1.0
How to fix
Upgrade to a fixed version: HashiCorp Consul 2.1.0; HashiCorp Consul Enterprise 2.1.0. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-105765 or the next vulnerability affects your stack