CVE-2026-110720

Consul-k8s vulnerable to a cross-namespace authorization bypass in component ACL binding rules

Published Oct 26, 2026 CVSS 3.1 · 9.9 Critical EPSS < 1% KEV · Not listed
Description
Consul-k8s versions 0.42.0 and later are vulnerable to a cross-namespace authorization bypass in component ACL binding rules that may allow an attacker to obtain elevated Consul privileges. This vulnerability (CVE-2026-110720) is fixed in consul-k8s 2.1.0 and 1.8.18.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Hashicorp
Hashicorp tooling
Vendors & Products Hashicorp
Hashicorp tooling
Type Values Removed Values Added
Description Consul-k8s versions 0.42.0 and later are vulnerable to a cross-namespace authorization bypass in component ACL binding rules that may allow an attacker to obtain elevated Consul privileges. This vulnerability (CVE-2026-110720) is fixed in consul-k8s 2.1.0 and 1.8.18.
Title Consul-k8s vulnerable to a cross-namespace authorization bypass in component ACL binding rules
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
HashiCorp
Published
Updated
Oct 26, 2026, 7:38 PM
Reserved
Oct 14, 2026, 2:44 PM
Status
Awaiting Analysis
Published
Oct 26, 2026, 7:16 PM
Modified
Oct 27, 2026, 4:03 PM