# CVE-2026-87090

## Summary

- **CVE ID:** CVE-2026-87090
- **Severity:** HIGH
- **CVSS Score:** 8.3 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H)
- **CWE:** CWE-863
- **Published:** Sep 10, 2026
- **Last Modified:** Sep 10, 2026

## Description

Consul and Consul Enterprise are vulnerable to an authorization bypass in the catalog node-write path that may allow an authenticated attacker to delete another node's catalog registration and take over its node identity. An attacker with a token granting node-write permission on any single node name may exploit this issue if they can obtain the node ID of a node they do not control. This vulnerability (CVE-2026-87090) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.

## Affected Products

- HashiCorp — Consul (0.1.0)
- HashiCorp — Consul Enterprise (0.1.0)

## References

- [CNA](https://discuss.hashicorp.com/t/hcsec-2026-34-consul-vulnerable-to-an-authorization-bypass-in-the-catalog-node-write-path/77736)

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._