CVE-2026-88021
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Consul vulnerable to an authorization bypass in the Connect service mesh
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Consul
- Vendor
- HashiCorp
- Product
- Consul
- Platforms
- 64 bit
- 32 bit
- x86
- ARM
- MacOS
- Windows
- Linux
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1.9.0 | affected | semver | 2.0.4 | Unavailable | None listed |
Consul Enterprise
- Vendor
- HashiCorp
- Product
- Consul Enterprise
- Platforms
- 64 bit
- 32 bit
- x86
- ARM
- MacOS
- Windows
- Linux
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1.9.0 | affected | semver | 2.0.4 | Unavailable |
|