What is CVE-2026-19012?

CVE-2026-19012 is a medium-severity vulnerability in Hashicorp Consul, classified under NULL Pointer Dereference. CVSS score: 5.3/10. Published 2026-08-07.

How severe is CVE-2026-19012?

Medium severity. CVSS v3 base score is 5.3 out of 10.

NULL pointer dereference in Hashicorp Consul

CVE-2026-19012

Consul Community Edition and Consul Enterprise 1.18.0 through 2.0.2 are vulnerable to an authenticated denial of service in the Enterprise-to-Community Edition downgrade path that may allow an authorized caller to crash the Consul server…

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Hashicorp Consul — versions 1.18.0
Hashicorp Consul Enterprise — versions 1.18.0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

security@hashicorp.com

Frequently asked questions

What is CVE-2026-19012?: CVE-2026-19012 is a medium-severity vulnerability in Hashicorp Consul, classified under NULL Pointer Dereference. CVSS score: 5.3/10. Published 2026-08-07.
How severe is CVE-2026-19012?: Medium severity. CVSS v3 base score is 5.3 out of 10.