Consul Server Panic when Ingress and API Gateways Configured with Peering
Priority LOW 31CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-476.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01005 63rd percentileScored 2026-11-07
Fix Partial github.com/hashicorp/consul (Go): 1.14.5Red Hat: 1 without a fix
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; 1.14.1; 1.14.2; 1.14.3; 1.14.4 | — | No fix listed | CNA |
| HashiCorp | Consul Enterprise | 1.14.0; 1.14.1; 1.14.2; 1.14.3; 1.14.4 | — | No fix listed | CNA |
| — | github.com/hashicorp/consul (Go) | 1.14.0 to before 1.14.5 | 1.14.5 | Patch available | GHSA-wj6x-hcc2-f32j |
- Consul VendorHashiCorp Affected 1.14.0; 1.14.1; 1.14.2; 1.14.3; 1.14.4 Fixed in — No fix listed CNA
- Consul Enterprise VendorHashiCorp Affected 1.14.0; 1.14.1; 1.14.2; 1.14.3; 1.14.4 Fixed in — No fix listed CNA
- github.com/hashicorp/consul (Go) Vendor— Affected 1.14.0 to before 1.14.5 Fixed in 1.14.5 Patch available GHSA-wj6x-hcc2-f32j
Remediation
- Fix · GHSA-wj6x-hcc2-f32j github.com/hashicorp/consul (Go) Fixed in 1.14.5 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Openshift Data Foundation 4 | Affected | No fix yet |
Not affected: 3 products
- Logging Subsystem for Red Hat OpenShift
- Red Hat Advanced Cluster Management for Kubernetes 2
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2023-0845
- 2026-10-03 Alias added: GHSA-wj6x-hcc2-f32j
References
Advisory 2
Other 7
- https://lists.fedoraproject.org/archives/list/[email protected]/message/ZTE4ITXXPIWZEQ4HYQCB6N6GZIMWXDAI/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/LYZOKMMVX4SIEHPJW3SJUQGMO5YZCPHC/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/XNF4OLYZRQE75EB5TW5N42FSXHBXGWFE/
- https://github.com/hashicorp/consul
- https://lists.fedoraproject.org/archives/list/[email protected]/message/LYZOKMMVX4SIEHPJW3SJUQGMO5YZCPHC
- https://lists.fedoraproject.org/archives/list/[email protected]/message/XNF4OLYZRQE75EB5TW5N42FSXHBXGWFE
- https://lists.fedoraproject.org/archives/list/[email protected]/message/ZTE4ITXXPIWZEQ4HYQCB6N6GZIMWXDAI
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-2023-0845 · CVE Program
- CVE-2023-0845 · NVD
- FIRST EPSS
- GHSA-wj6x-hcc2-f32j · GitHub Advisory Database · CC BY 4.0
- CVE-2023-0845 · 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