---
title: "CVE-2026-105765: HashiCorp Consul - Authorization Bypass"
description: "HashiCorp Consul and Consul Enterprise 1.17.0 up to 2.0.4 contain an authorization bypass caused by improper access control in the agent's service mesh leaf certificate API, letting attackers without valid ACL tokens retrieve cached service leaf certificates and private keys, exploit requires no valid ACL token."
url: https://panop.io/threat-heartbeat/CVE-2026-105765/
---

# CVE-2026-105765 HashiCorp Consul - Authorization Bypass

HashiCorp Consul and Consul Enterprise 1.17.0 up to 2.0.4 contain an authorization bypass caused by improper access control in the agent's service mesh leaf certificate API, letting attackers without valid ACL tokens retrieve cached service leaf certificates and private keys, exploit requires no valid ACL token.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-105765)

## Details

Type

Authorization Bypass

Impact

Information Disclosure

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Published

26 October 2026

Updated

27 October 2026

Weakness

[CWE-862](https://cwe.mitre.org/data/definitions/862.html)

## Vendor fix

Update to Consul Community Edition 2.1.0, Consul Enterprise 2.1.0 or 1.21.19.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-105765](https://nvd.nist.gov/vuln/detail/CVE-2026-105765)
- [https://discuss.hashicorp.com/t/hcsec-2026-46-consul-vulnerable-to-an-authorization-bypass-in-the-agents-service-mesh-leaf-certificate-api/77911](https://discuss.hashicorp.com/t/hcsec-2026-46-consul-vulnerable-to-an-authorization-bypass-in-the-agents-service-mesh-leaf-certificate-api/77911)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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