CVE-2026-87107

Published: Sep 10, 2026Modified: Sep 10, 2026

5.4

Vector

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

Exploitability: 2.8 / Impact: 2.5

Source: security@hashicorp.com (Secondary)

Description

Consul and Consul Enterprise are vulnerable to an authorization bypass in the catalog deregistration path that may allow a local ACL token to delete peer-imported catalog objects. A caller with {{service:write}} or {{node:write}} permission may exploit this issue to remove services, checks, or nodes imported from a peered cluster without holding authority over the peer origin. This vulnerability (CVE-2026-87107) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.

Related CWEs

CWE-863

Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

References (1)

https://discuss.hashicorp.com/t/hcsec-2026-36-consul-vulnerable-to-an-authorization-bypass-in-the-catalog-deregistration-path/77738

Source: security@hashicorp.com

Timeline

No history available yet.