Hashicorp Consul Enterprise vulnerabilities

CVE-2026-87090 [HIGH] CWE-863 CVE-2026-87090: Consul and Consul Enterprise are vulnerable to an authorization bypass in the catalog node-write pat Consul and Consul Enterprise are vulnerable to an authorization bypass in the catalog node-write path that may allow an authenticated attacker to delete another node's catalog registration and take over its node identity. An attacker with a token granting node-write permission on any single node name may exploit this issue if they can obtain the node

CVE-2026-15972 [HIGH] CWE-770 CVE-2026-15972: Consul Community Edition and Consul Enterprise 1.13.0 through 2.0.2 are vulnerable to an unauthentic Consul Community Edition and Consul Enterprise 1.13.0 through 2.0.2 are vulnerable to an unauthenticated denial of service through unbounded connection acceptance on the external gRPC listeners. A remote attacker may exhaust agent file descriptors, goroutines, and memory by opening many incomplete connections, potentially preventing legitimate clients

CVE-2026-88021 [HIGH] CWE-185 CVE-2026-88021: Consul and Consul Enterprise are vulnerable to an authorization bypass in the Connect service mesh t Consul and Consul Enterprise are vulnerable to an authorization bypass in the Connect service mesh that may allow a service to reach a destination it is not authorized to access. When building Envoy RBAC rules to enforce Connect intentions, Consul did not correctly escape certain characters in service names, namespaces, and partitions, causing the gen

CVE-2023-3518 [HIGH] CWE-266 CVE-2023-3518: HashiCorp Consul and Consul Enterprise 1.16.0 when using JWT Auth for service mesh incorrectly allow HashiCorp Consul and Consul Enterprise 1.16.0 when using JWT Auth for service mesh incorrectly allows/denies access regardless of service identities. Fixed in 1.16.1.

CVE-2026-19017 [MEDIUM] CWE-862 CVE-2026-19017: Consul Community Edition and Consul Enterprise 1.18.21 through 2.0.2 are vulnerable to a partial arb Consul Community Edition and Consul Enterprise 1.18.21 through 2.0.2 are vulnerable to a partial arbitrary file read when configured to use the Vault Connect CA provider with JWT or AppRole authentication. A privileged attacker with `operator:write` permission may direct Consul to read and forward credential files outside the intended scope, potenti

CVE-2026-2808 [MEDIUM] CWE-59 CVE-2026-2808: HashiCorp Consul and Consul Enterprise 1.18.20 up to 1.21.10 and 1.22.4 are vulnerable to arbitrary HashiCorp Consul and Consul Enterprise 1.18.20 up to 1.21.10 and 1.22.4 are vulnerable to arbitrary file read when configured with Kubernetes authentication. This vulnerability, CVE-2026-2808, is fixed in Consul 1.18.21, 1.21.11 and 1.22.5.

CVE-2022-3920 [HIGH] CWE-862 CVE-2022-3920: HashiCorp Consul and Consul Enterprise 1.13.0 up to 1.13.3 do not filter cluster filtering's importe HashiCorp Consul and Consul Enterprise 1.13.0 up to 1.13.3 do not filter cluster filtering's imported nodes and services for HTTP or RPC endpoints used by the UI. Fixed in 1.14.0.

CVE-2026-87106 [MEDIUM] CWE-400 CVE-2026-87106: Consul and Consul Enterprise are vulnerable to a denial of service in the native RPC listener that m 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) i

CVE-2023-1297 [HIGH] CWE-826 CVE-2023-1297: Consul and Consul Enterprise's cluster peering implementation contained a flaw whereby a peer cluste Consul and Consul Enterprise's cluster peering implementation contained a flaw whereby a peer cluster with service of the same name as a local service could corrupt Consul state, resulting in denial of service. This vulnerability was resolved in Consul 1.14.5, and 1.15.3

CVE-2023-2816 [MEDIUM] CWE-266 CVE-2023-2816: Consul and Consul Enterprise allowed any user with service:write permissions to use Envoy extensions Consul and Consul Enterprise allowed any user with service:write permissions to use Envoy extensions configured via service-defaults to patch remote proxy instances that target the configured service, regardless of whether the user has permission to modify the service(s) corresponding to those modified proxies.

CVE-2025-11374 [MEDIUM] CWE-770 CVE-2025-11374: Consul and Consul Enterprise’s (“Consul”) key/value endpoint is vulnerable to denial of service (DoS Consul and Consul Enterprise’s (“Consul”) key/value endpoint is vulnerable to denial of service (DoS) due to incorrect Content Length header validation. This vulnerability, CVE-2025-11374, is fixed in Consul Community Edition 1.22.0 and Consul Enterprise 1.22.0, 1.21.6, 1.20.8 and 1.18.12.

CVE-2025-11375 [MEDIUM] CWE-770 CVE-2025-11375: Consul and Consul Enterprise’s (“Consul”) event endpoint is vulnerable to denial of service (DoS) du Consul and Consul Enterprise’s (“Consul”) event endpoint is vulnerable to denial of service (DoS) due to lack of maximum value on the Content Length header. This vulnerability, CVE-2025-11375, is fixed in Consul Community Edition 1.22.0 and Consul Enterprise 1.22.0, 1.21.6, 1.20.8 and 1.18.12.

CVE-2023-0845 [MEDIUM] CWE-476 CVE-2023-0845: Consul and Consul Enterprise allowed an authenticated user with service:write permissions to trigger Consul and Consul Enterprise allowed an authenticated user with service:write permissions to trigger a workflow that causes Consul server and client agents to crash under certain circumstances. This vulnerability was fixed in Consul 1.14.5.

CVE-2024-10005 [MEDIUM] CWE-22 CVE-2024-10005: A vulnerability was identified in Consul and Consul Enterprise (“Consul”) such that using URL paths A vulnerability was identified in Consul and Consul Enterprise (“Consul”) such that using URL paths in L7 traffic intentions could bypass HTTP request path-based access rules.

CVE-2026-87107 [MEDIUM] CWE-863 CVE-2026-87107: Consul and Consul Enterprise are vulnerable to an authorization bypass in the catalog deregistration Consul and Consul Enterprise are vulnerable to an authorization bypass in the catalog deregistration path that may allow a local ACL token to delete peer-imported catalog objects. A caller with {{service:write}} or {{node:write}} permission may exploit this issue to remove services, checks, or nodes imported from a peered cluster without holding aut

CVE-2024-10006 [MEDIUM] CWE-644 CVE-2024-10006: A vulnerability was identified in Consul and Consul Enterprise (“Consul”) such that using Headers in A vulnerability was identified in Consul and Consul Enterprise (“Consul”) such that using Headers in L7 traffic intentions could bypass HTTP header based access rules.

CVE-2026-19015 [MEDIUM] CWE-770 CVE-2026-19015: Consul Community Edition and Consul Enterprise 1.2.0 through 2.0.2 are vulnerable to an uncontrolled 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

CVE-2026-19113 [MEDIUM] CWE-400 CVE-2026-19113: Consul Community Edition and Consul Enterprise 1.3.0 through 2.0.2 are vulnerable to an unauthentica Consul Community Edition and Consul Enterprise 1.3.0 through 2.0.2 are vulnerable to an unauthenticated denial of service in several agent HTTP API endpoints. A remote caller could cause the agent to consume substantial memory before the request was rejected. This vulnerability, CVE-2026-19113, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17,

CVE-2026-19012 [MEDIUM] CWE-476 CVE-2026-19012: Consul Community Edition and Consul Enterprise 1.18.0 through 2.0.2 are vulnerable to an authenticat Consul Community Edition and Consul Enterprise 1.18.0 through 2.0.2 are vulnerable to an authenticated denial of service in the Enterprise-to-Community Edition downgrade path that may allow an authorized caller to crash the Consul server. A caller with config-entry write permission can submit a service-router configuration entry that causes the agen

CVE-2026-19016 [MEDIUM] CWE-22 CVE-2026-19016: Consul Community Edition and Consul Enterprise 1.19.1 through 2.0.2 did not enforce the Consul Community Edition and Consul Enterprise 1.19.1 through 2.0.2 did not enforce the {{session:write}} ACL permission for session deletion operations submitted through the transaction API. An authenticated caller with network access to the Consul server RPC port could delete arbitrary sessions without holding the required permission. This vulnerability, CVE-20