CVE-2026-105626
High
Description
HashiCorp Consul and Consul Enterprise are vulnerable to a denial of service in the HTTP API that may allow an unauthenticated attacker to exhaust memory on a Consul agent. This vulnerability (CVE-2026-105626) is fixed in Consul Community Edition 2.1.0 and Consul Enterprise 2.1.0 and 1.21.19.
SeverityHigh
CVSS7.5
Exploit probability—
ProductConsul
PublishedOct 26, 2026
First seenOct 26, 2026
Weakness typeCWE-770Allocation of resources without limits
How to fix
Update
- HashiCorp Consul2.1.0 or later
- HashiCorp Consul Enterprise2.1.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| HashiCorp Consul | 0.6.0 ≤ v < 2.1.0 | 2.1.0 |
| HashiCorp Consul Enterprise | 0.6.0 ≤ v < 2.1.0 | 2.1.0 |
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