Medium severity · published Aug 7, 2026
CVE-2026-19014
Uncontrolled resource consumption in the Consul Connect authorization endpoint
4.3
CVSS
0.4%
EPSS
No
On KEV
Description
Consul Community Edition and Consul Enterprise 1.17.0 through 2.0.2 are vulnerable to an uncontrolled resource consumption issue in the Connect authorization endpoint that may allow a caller to grow the agent's intention-match cache without bound, defeating the operator's cache-disable configuration. This vulnerability, CVE-2026-190124, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
Consul · HashiCorp
1.17.0 before 2.0.3 · source: vendor
CE
Consul Enterprise · HashiCorp
1.17.0 before 2.0.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-19014
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-19014
discuss.hashicorp.com
https://discuss.hashicorp.com/t/hcsec-2026-25-multiple-vulnerabilities-impacting-hashicorp-consul/77629
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