Consul vulnerable to an authorization bypass in the Connect service mesh
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| HashiCorp | Consul | unaffected |
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| HashiCorp | Consul Enterprise | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hashicorp | Consul |
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| Hashicorp | Consul Enterprise |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.335% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Hashicorp
Hashicorp consul Hashicorp consul Enterprise |
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| Vendors & Products |
Hashicorp
Hashicorp consul Hashicorp consul Enterprise |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Consul vulnerable to an authorization bypass in the Connect service mesh | |
| Weaknesses | CWE-185 | |
| References |
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| Metrics |
cvssV3_1
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