CVE-2026-87107
Medium
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.
SeverityMedium
CVSS5.4
Exploit probability—
ProductConsul
PublishedSep 10, 2026
First seenSep 10, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- HashiCorp Consul2.0.4 or later
- HashiCorp Consul Enterprise2.0.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| HashiCorp Consul | 1.21.0 ≤ v < 2.0.4 | 2.0.4 |
| HashiCorp Consul Enterprise | 1.21.0 ≤ v < 2.0.4 | 2.0.4 |
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