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CVE-2026-87106

Consul vulnerable to a denial of service in the native RPC listener

CVSS 3.1 6.5 MEDIUMCheck source for fixed versionsKEV status unknown
Original advisory

cve-program · CVE-2026-87106

Published

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.

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Affected versions, risk and source history

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CVE-2026-87106 · CVE overview and exploitation status

cve-program · CVE-2026-87106

Related changes

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