CVEvulnerability

CVE-2026-88021

7.1 HIGH Published 2026-09-10 Modified 2026-09-10 Official page ↗
Status
Awaiting Analysis
Published
2026-09-10
Last modified
2026-09-10
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Weaknesses
CWE-185

Description

Consul and Consul Enterprise are vulnerable to an authorization bypass in the Connect service mesh that may allow a service to reach a destination it is not authorized to access. When building Envoy RBAC rules to enforce Connect intentions, Consul did not correctly escape certain characters in service names, namespaces, and partitions, causing the generated authorization rules to match more broadly than intended. This vulnerability (CVE-2026-88021) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.

Related

Weakness · CWE (1)

  • CWE-185 Incorrect Regular Expression weakness

References