Consul Cluster Peering can Result in Denial of Service
Priority LOW 34CWE-826Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
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
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00768 55th percentileScored 2026-11-07
Fix Fixed github.com/hashicorp/consul (Go): 1.14.5, 1.15.3
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| HashiCorp | Consul | 1.14.0 – 1.14.5; 1.15.0 – 1.15.3 | — | No fix listed | CNA |
| HashiCorp | Consul Enterprise | 1.14.0 – 1.14.5; 1.15.0 – 1.15.3 | — | No fix listed | CNA |
| — | github.com/hashicorp/consul (Go) | before 1.14.5 | 1.14.5 | Patch available | GHSA-c57c-7hrj-6q6v |
| — | github.com/hashicorp/consul (Go) | 1.15.0 to before 1.15.3 | 1.15.3 | Patch available | GHSA-c57c-7hrj-6q6v |
- Consul VendorHashiCorp Affected 1.14.0 – 1.14.5; 1.15.0 – 1.15.3 Fixed in — No fix listed CNA
- Consul Enterprise VendorHashiCorp Affected 1.14.0 – 1.14.5; 1.15.0 – 1.15.3 Fixed in — No fix listed CNA
- github.com/hashicorp/consul (Go) Vendor— Affected before 1.14.5 Fixed in 1.14.5 Patch available GHSA-c57c-7hrj-6q6v
- github.com/hashicorp/consul (Go) Vendor— Affected 1.15.0 to before 1.15.3 Fixed in 1.15.3 Patch available GHSA-c57c-7hrj-6q6v
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hashicorp:consul:*:*:*:*:-:*:*:* | 1.13.0 to before 1.14.7 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:* | 1.13.0 to before 1.14.7 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:consul:*:*:*:*:-:*:*:* | 1.15.0 to before 1.15.3 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:* | 1.15.0 to before 1.15.3 | Vulnerable | HashiCorp |
- cpe:2.3:a:hashicorp:consul:*:*:*:*:-:*:*:* Versions 1.13.0 to before 1.14.7 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:* Versions 1.13.0 to before 1.14.7 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:consul:*:*:*:*:-:*:*:* Versions 1.15.0 to before 1.15.3 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:* Versions 1.15.0 to before 1.15.3 Vulnerable ·HashiCorp
Remediation
- Fix · GHSA-c57c-7hrj-6q6v github.com/hashicorp/consul (Go) Fixed in 1.14.5 Advisory →
- Fix · GHSA-c57c-7hrj-6q6v github.com/hashicorp/consul (Go) Fixed in 1.15.3 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2023-1297
- 2026-10-03 Alias added: GHSA-c57c-7hrj-6q6v
References
More HashiCorp Consul vulnerabilities
- TI-2021-18437 HashiCorp Consul Enterprise before 1.8.17, 1.9.x before 1.9.11, and 1.10.x before 1.10.4… CVSS 3.1HIGH 8.8
- TI-2022-11698 HashiCorp Consul and Consul Enterprise up to 1.9.16, 1.10.9, and 1.11.4 may allow server… CVSS 3.1HIGH 7.5
- TI-2021-02215 An issue was discovered in GoGo Protobuf before 1.3.2. CVSS 3.1HIGH 8.6
- TI-2024-09286 Consul L7 Intentions Vulnerable To Headers Bypass CVSS 3.1HIGH 8.3
- TI-2023-02638 Consul Envoy Extension Downsteam Proxy Configuration By Upstream Service Owner CVSS 3.1HIGH 8.7
- TI-2022-03595 Consul Peering Imported Nodes/Services Leak CVSS 3.1HIGH 7.5
Sources
- CVE-2023-1297 · CVE Program
- CVE-2023-1297 · NVD
- FIRST EPSS
- GHSA-c57c-7hrj-6q6v · GitHub Advisory Database · CC BY 4.0
- CVE-2023-1297 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences