CVE-2026-87106 — Consul vulnerable to a denial of service in the native RPC listener
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 authoriz…
Published: 2026-09-10 · CVSS: 6.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7