CVE-2026-19113

Unauthenticated denial of service via unbounded request body processing

State: Published
Severity: 5.3 Medium
Published: Aug 7, 2026
Updated: Aug 10, 2026
Reserved: Aug 6, 2026

Description

Consul Community Edition and Consul Enterprise 1.3.0 through 2.0.2 are vulnerable to an unauthenticated denial of service in several agent HTTP API endpoints. A remote caller could cause the agent to consume substantial memory before the request was rejected. This vulnerability, CVE-2026-19113, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L	HashiCorp

Weaknesses

CWE-400 Uncontrolled Resource Consumption

Affected Products

Product	Versions
ConsulHashiCorp	1.3.0 to before 2.0.3Affected
Consul EnterpriseHashiCorp	1.3.0 to before 2.0.3Affectedfrom 1.21.17Not affectedfrom 1.22.11Not affected

References

https://discuss.hashicorp.com/t/hcsec-2026-25-multiple-vulnerabilities-impacting-hashicorp-consul/77629

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.