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96 vulnerabilities found for consul by hashicorp
CVE-2026-88021 (GCVE-0-2026-88021)
Vulnerability from nvd – Published: 2026-09-10 18:58 – Updated: 2026-09-10 19:21
VLAI
EPSS
VEX
Title
Consul vulnerable to an authorization bypass in the Connect service mesh
Summary
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 generated authorization rules to match more broadly than intended. This vulnerability (CVE-2026-88021) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 19:21 UTC
CWE
- CWE-185 - Incorrect Regular Expression
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.9.0 , < 2.0.4
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.9.0 , < 2.0.4
(semver)
|
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CVE-2026-87107 (GCVE-0-2026-87107)
Vulnerability from nvd – Published: 2026-09-10 18:57 – Updated: 2026-09-10 19:22
VLAI
EPSS
VEX
Title
Consul vulnerable to an authorization bypass in the catalog deregistration path
Summary
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 authority over the peer origin. This vulnerability (CVE-2026-87107) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 19:21 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.21.0 , < 2.0.4
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.21.0 , < 2.0.4
(semver)
|
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CVE-2026-87106 (GCVE-0-2026-87106)
Vulnerability from nvd – Published: 2026-09-10 18:55 – Updated: 2026-09-10 19:02
VLAI
EPSS
VEX
Title
Consul vulnerable to a denial of service in the native RPC listener
Summary
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.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 19:02 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.21.0 , < 2.0.4
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.21.0 , < 2.0.4
(semver)
|
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CVE-2026-87090 (GCVE-0-2026-87090)
Vulnerability from nvd – Published: 2026-09-10 18:54 – Updated: 2026-09-10 19:02
VLAI
EPSS
VEX
Title
Consul vulnerable to an authorization bypass in the catalog node-write path
Summary
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 ID of a node they do not control. This vulnerability (CVE-2026-87090) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.
Severity
8.3 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 19:02 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
0.1.0 , < 2.0.4
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
0.1.0 , < 2.0.4
(semver)
|
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CVE-2026-19113 (GCVE-0-2026-19113)
Vulnerability from nvd – Published: 2026-08-07 19:20 – Updated: 2026-08-10 18:24
VLAI
EPSS
VEX
Title
Unauthenticated denial of service via unbounded request body processing
Summary
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, 1.22.11, and 2.0.3.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:35 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.3.0 , < 2.0.3
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.3.0 , < 2.0.3
(semver)
|
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CVE-2026-19017 (GCVE-0-2026-19017)
Vulnerability from nvd – Published: 2026-08-07 19:19 – Updated: 2026-08-10 21:12
VLAI
EPSS
VEX
Title
Consul vulnerable to partial arbitrary file read via Vault Connect CA provider
Summary
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, potentially leading to the exfiltration of sensitive secrets from the Consul server host. This vulnerability, CVE-2026-19017, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Severity
6.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 18:38 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.18.21 , < 2.0.3
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.18.21 , < 2.0.3
(semver)
|
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CVE-2026-19016 (GCVE-0-2026-19016)
Vulnerability from nvd – Published: 2026-08-07 19:18 – Updated: 2026-08-10 18:24
VLAI
EPSS
VEX
Title
Authorization bypass for session deletion in the transaction API
Summary
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-2026-19016, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Severity
4.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:46 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory (Path Traversal)
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.19.1 , < 2.0.3
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.19.1 , < 2.0.3
(semver)
|
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CVE-2026-19015 (GCVE-0-2026-19015)
Vulnerability from nvd – Published: 2026-08-07 19:19 – Updated: 2026-08-10 18:24
VLAI
EPSS
VEX
Title
Uncontrolled resource consumption in the Consul Connect CA roots endpoint
Summary
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 Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:44 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.2.0 , < 2.0.3
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.2.0 , < 2.0.3
(semver)
|
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CVE-2026-19014 (GCVE-0-2026-19014)
Vulnerability from nvd – Published: 2026-08-07 19:19 – Updated: 2026-08-10 18:24
VLAI
EPSS
VEX
Title
Uncontrolled resource consumption in the Consul Connect authorization endpoint
Summary
Consul Community Edition and Consul Enterprise 1.17.0 through 2.0.2 are vulnerable to an uncontrolled resource consumption issue in the Connect authorization endpoint that may allow a caller to grow the agent's intention-match cache without bound, defeating the operator's cache-disable configuration. This vulnerability, CVE-2026-190124, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:45 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.17.0 , < 2.0.3
(semver)
|
|
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Affected:
1.17.0 , < 2.0.3
(semver)
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CVE-2026-19012 (GCVE-0-2026-19012)
Vulnerability from nvd – Published: 2026-08-07 19:18 – Updated: 2026-08-10 18:24
VLAI
EPSS
VEX
Title
Authenticated denial of service in Consul Enterprise-to-Community Edition downgrade path
Summary
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 agent to exit unexpectedly. This vulnerability, CVE-2026-19012, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:45 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.18.0 , < 2.0.3
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.18.0 , < 2.0.3
(semver)
|
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CVE-2026-15972 (GCVE-0-2026-15972)
Vulnerability from nvd – Published: 2026-08-07 19:20 – Updated: 2026-08-10 18:24
VLAI
EPSS
VEX
Title
Unauthenticated denial of service via unbounded external gRPC connection acceptance
Summary
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 from connecting. This vulnerability, CVE-2026-15972, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:39 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.13.0 , < 2.0.3
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.13.0 , < 2.0.3
(semver)
|
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CVE-2026-15970 (GCVE-0-2026-15970)
Vulnerability from nvd – Published: 2026-08-07 19:20 – Updated: 2026-08-10 18:24
VLAI
EPSS
VEX
Title
L7 intention authorization bypass via custom public listener
Summary
Consul Community Edition and Consul Enterprise 1.20.1 through 2.0.2 are vulnerable to an L7 intention authorization bypass when a service proxy is configured with a custom public listener. An authenticated mesh workload may reach HTTP paths that are blocked by a path-based deny intention. This vulnerability, CVE-2026-15970, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Severity
4.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:41 UTC
CWE
- CWE-647 - Non-Canonical URL Authorization
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.20.1 , < 2.0.3
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.20.1 , < 2.0.3
(semver)
|
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CVE-2026-2808 (GCVE-0-2026-2808)
Vulnerability from nvd – Published: 2026-03-11 23:08 – Updated: 2026-04-17 17:57
VLAI
EPSS
VEX
Title
Consul vulnerable to arbitrary file reads through the vault kubernetes authentication provider
Summary
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.
Severity
6.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-12 13:28 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access (Link Following)
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
0 , < 1.22.5
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
0 , < 1.22.5
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CVE-2025-11375 (GCVE-0-2025-11375)
Vulnerability from nvd – Published: 2025-10-28 20:12 – Updated: 2025-12-09 01:37
VLAI
EPSS
VEX
Title
Consul's event endpoint is vulnerable to denial of service
Summary
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.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-29 17:34 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
0 , < 1.22.0
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
0 , < 1.22.0
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CVE-2025-11374 (GCVE-0-2025-11374)
Vulnerability from nvd – Published: 2025-10-28 20:19 – Updated: 2026-04-17 18:34
VLAI
EPSS
VEX
Title
Consul's KV endpoint is vulnerable to denial of service
Summary
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.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-28 20:35 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
0 , < 1.22.0
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
0 , < 1.22.0
(semver)
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CVE-2026-88021 (GCVE-0-2026-88021)
Vulnerability from cvelistv5 – Published: 2026-09-10 18:58 – Updated: 2026-09-10 19:21
VLAI
EPSS
VEX
Title
Consul vulnerable to an authorization bypass in the Connect service mesh
Summary
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 generated authorization rules to match more broadly than intended. This vulnerability (CVE-2026-88021) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 19:21 UTC
CWE
- CWE-185 - Incorrect Regular Expression
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.9.0 , < 2.0.4
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.9.0 , < 2.0.4
(semver)
|
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CVE-2026-87107 (GCVE-0-2026-87107)
Vulnerability from cvelistv5 – Published: 2026-09-10 18:57 – Updated: 2026-09-10 19:22
VLAI
EPSS
VEX
Title
Consul vulnerable to an authorization bypass in the catalog deregistration path
Summary
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 authority over the peer origin. This vulnerability (CVE-2026-87107) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 19:21 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.21.0 , < 2.0.4
(semver)
|
|
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Affected:
1.21.0 , < 2.0.4
(semver)
|
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CVE-2026-87106 (GCVE-0-2026-87106)
Vulnerability from cvelistv5 – Published: 2026-09-10 18:55 – Updated: 2026-09-10 19:02
VLAI
EPSS
VEX
Title
Consul vulnerable to a denial of service in the native RPC listener
Summary
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.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 19:02 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
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Affected:
1.21.0 , < 2.0.4
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.21.0 , < 2.0.4
(semver)
|
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CVE-2026-87090 (GCVE-0-2026-87090)
Vulnerability from cvelistv5 – Published: 2026-09-10 18:54 – Updated: 2026-09-10 19:02
VLAI
EPSS
VEX
Title
Consul vulnerable to an authorization bypass in the catalog node-write path
Summary
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 ID of a node they do not control. This vulnerability (CVE-2026-87090) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.
Severity
8.3 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 19:02 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
0.1.0 , < 2.0.4
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
0.1.0 , < 2.0.4
(semver)
|
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CVE-2026-19113 (GCVE-0-2026-19113)
Vulnerability from cvelistv5 – Published: 2026-08-07 19:20 – Updated: 2026-08-10 18:24
VLAI
EPSS
VEX
Title
Unauthenticated denial of service via unbounded request body processing
Summary
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, 1.22.11, and 2.0.3.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:35 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.3.0 , < 2.0.3
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.3.0 , < 2.0.3
(semver)
|
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CVE-2026-15972 (GCVE-0-2026-15972)
Vulnerability from cvelistv5 – Published: 2026-08-07 19:20 – Updated: 2026-08-10 18:24
VLAI
EPSS
VEX
Title
Unauthenticated denial of service via unbounded external gRPC connection acceptance
Summary
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 from connecting. This vulnerability, CVE-2026-15972, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:39 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.13.0 , < 2.0.3
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.13.0 , < 2.0.3
(semver)
|
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CVE-2026-15970 (GCVE-0-2026-15970)
Vulnerability from cvelistv5 – Published: 2026-08-07 19:20 – Updated: 2026-08-10 18:24
VLAI
EPSS
VEX
Title
L7 intention authorization bypass via custom public listener
Summary
Consul Community Edition and Consul Enterprise 1.20.1 through 2.0.2 are vulnerable to an L7 intention authorization bypass when a service proxy is configured with a custom public listener. An authenticated mesh workload may reach HTTP paths that are blocked by a path-based deny intention. This vulnerability, CVE-2026-15970, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Severity
4.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:41 UTC
CWE
- CWE-647 - Non-Canonical URL Authorization
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.20.1 , < 2.0.3
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.20.1 , < 2.0.3
(semver)
|
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CVE-2026-19017 (GCVE-0-2026-19017)
Vulnerability from cvelistv5 – Published: 2026-08-07 19:19 – Updated: 2026-08-10 21:12
VLAI
EPSS
VEX
Title
Consul vulnerable to partial arbitrary file read via Vault Connect CA provider
Summary
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, potentially leading to the exfiltration of sensitive secrets from the Consul server host. This vulnerability, CVE-2026-19017, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Severity
6.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 18:38 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.18.21 , < 2.0.3
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.18.21 , < 2.0.3
(semver)
|
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CVE-2026-19015 (GCVE-0-2026-19015)
Vulnerability from cvelistv5 – Published: 2026-08-07 19:19 – Updated: 2026-08-10 18:24
VLAI
EPSS
VEX
Title
Uncontrolled resource consumption in the Consul Connect CA roots endpoint
Summary
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 Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:44 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.2.0 , < 2.0.3
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.2.0 , < 2.0.3
(semver)
|
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CVE-2026-19014 (GCVE-0-2026-19014)
Vulnerability from cvelistv5 – Published: 2026-08-07 19:19 – Updated: 2026-08-10 18:24
VLAI
EPSS
VEX
Title
Uncontrolled resource consumption in the Consul Connect authorization endpoint
Summary
Consul Community Edition and Consul Enterprise 1.17.0 through 2.0.2 are vulnerable to an uncontrolled resource consumption issue in the Connect authorization endpoint that may allow a caller to grow the agent's intention-match cache without bound, defeating the operator's cache-disable configuration. This vulnerability, CVE-2026-190124, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:45 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.17.0 , < 2.0.3
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.17.0 , < 2.0.3
(semver)
|
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CVE-2026-19012 (GCVE-0-2026-19012)
Vulnerability from cvelistv5 – Published: 2026-08-07 19:18 – Updated: 2026-08-10 18:24
VLAI
EPSS
VEX
Title
Authenticated denial of service in Consul Enterprise-to-Community Edition downgrade path
Summary
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 agent to exit unexpectedly. This vulnerability, CVE-2026-19012, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:45 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.18.0 , < 2.0.3
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.18.0 , < 2.0.3
(semver)
|
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CVE-2026-19016 (GCVE-0-2026-19016)
Vulnerability from cvelistv5 – Published: 2026-08-07 19:18 – Updated: 2026-08-10 18:24
VLAI
EPSS
VEX
Title
Authorization bypass for session deletion in the transaction API
Summary
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-2026-19016, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Severity
4.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:46 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory (Path Traversal)
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
1.19.1 , < 2.0.3
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
1.19.1 , < 2.0.3
(semver)
|
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CVE-2026-2808 (GCVE-0-2026-2808)
Vulnerability from cvelistv5 – Published: 2026-03-11 23:08 – Updated: 2026-04-17 17:57
VLAI
EPSS
VEX
Title
Consul vulnerable to arbitrary file reads through the vault kubernetes authentication provider
Summary
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.
Severity
6.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-12 13:28 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access (Link Following)
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
0 , < 1.22.5
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
0 , < 1.22.5
(semver)
|
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CVE-2025-11374 (GCVE-0-2025-11374)
Vulnerability from cvelistv5 – Published: 2025-10-28 20:19 – Updated: 2026-04-17 18:34
VLAI
EPSS
VEX
Title
Consul's KV endpoint is vulnerable to denial of service
Summary
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.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-28 20:35 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
0 , < 1.22.0
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
0 , < 1.22.0
(semver)
|
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CVE-2025-11375 (GCVE-0-2025-11375)
Vulnerability from cvelistv5 – Published: 2025-10-28 20:12 – Updated: 2025-12-09 01:37
VLAI
EPSS
VEX
Title
Consul's event endpoint is vulnerable to denial of service
Summary
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.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-29 17:34 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Consul |
Affected:
0 , < 1.22.0
(semver)
|
|
| HashiCorp | Consul Enterprise |
Affected:
0 , < 1.22.0
(semver)
|
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