CVE-2026-105765 Consul vulnerable to an authorization bypass in the agent's service mesh leaf certificate API

High 7.5 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-105765?

CVE-2026-105765 is a high-severity vulnerability in HashiCorp Consul, published on 26 Oct 2026.

Official 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.

Weakness: CWE-862

Which versions are affected by CVE-2026-105765?

How do I fix CVE-2026-105765?

No fix has been published for CVE-2026-105765 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-105765 being exploited?

There is no known exploitation of CVE-2026-105765 in the wild and no public exploit code.

Sources

Also known as GHSA-g3r6-g7m5-3qf5, UBUNTU-CVE-2026-105765.

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