CVE-2026-87106
Medium · 6.5CVSS
6.5
EPSS
0.4%
Published
Sep 10, 2026
CISA due date
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The record
Consul and Consul Enterprise are vulnerable to a denial of service in the native RPC listener that may allow an authenticated client to exhaust server memory before ACL authorization is evaluated. A client that can complete the internal RPC mTLS handshake may exploit this issue without holding a valid ACL token. This vulnerability (CVE-2026-87106) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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