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CVE-2026-19015

Uncontrolled resource consumption in the Consul Connect CA roots endpoint

MEDIUM
5.3
CVSS Score
Published: August 7, 2026 at 07:19 PM UTC
Updated: August 28, 2026 at 04:02 PM UTC
1 product affected across 1 vendorConsul

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Consul Community Edition and Consul Enterprise 1.2.0 through 2.0.2 are vulnerable to an uncontrolled resource consumption issue in the Connect CA roots endpoint that may allow a remote caller to grow the agent's Connect CA roots cache without bound, defeating the operator's cache-disable configuration. This vulnerability, CVE-2026-19015, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Consul· Hashicorp
60%
1.2.0 ≤ v < 2.0.31.2.0
Affected range stops below 2.0.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

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

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMHashiCorp
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-770

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