HashiCorp Consul and Consul Enterprise could crash when configured with an…
Priority LOW 36CWE-404Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-404.
Summary
HashiCorp Consul and Consul Enterprise could crash when configured with an abnormally-formed service-router entry. Introduced in 1.6.0, fixed in 1.6.6 and 1.7.4.
Why it matters now
EPSS 0.01709 77th percentileScored 2026-11-07
Fix Fixed github.com/hashicorp/consul (Go): 1.6.6, 1.7.4
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | github.com/hashicorp/consul (Go) | 1.6.0-beta1 to before 1.6.6 | 1.6.6 | Patch available | GHSA-q2qr-3c2p-9235 |
| — | github.com/hashicorp/consul (Go) | 1.7.0 to before 1.7.4 | 1.7.4 | Patch available | GHSA-q2qr-3c2p-9235 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- github.com/hashicorp/consul (Go) Vendor— Affected 1.6.0-beta1 to before 1.6.6 Fixed in 1.6.6 Patch available GHSA-q2qr-3c2p-9235
- github.com/hashicorp/consul (Go) Vendor— Affected 1.7.0 to before 1.7.4 Fixed in 1.7.4 Patch available GHSA-q2qr-3c2p-9235
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hashicorp:consul:*:*:*:*:*:*:*:* | 1.6.0 to before 1.6.6 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:* | 1.6.0 to before 1.6.6 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:consul:*:*:*:*:*:*:*:* | 1.7.0 to before 1.7.4 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:* | 1.7.0 to before 1.7.4 | Vulnerable | HashiCorp |
- cpe:2.3:a:hashicorp:consul:*:*:*:*:*:*:*:* Versions 1.6.0 to before 1.6.6 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:* Versions 1.6.0 to before 1.6.6 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:consul:*:*:*:*:*:*:*:* Versions 1.7.0 to before 1.7.4 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:* Versions 1.7.0 to before 1.7.4 Vulnerable ·HashiCorp
Remediation
- Fix · GHSA-q2qr-3c2p-9235 github.com/hashicorp/consul (Go) Fixed in 1.6.6 Advisory →
- Fix · GHSA-q2qr-3c2p-9235 github.com/hashicorp/consul (Go) Fixed in 1.7.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-12758
- 2026-10-03 Alias added: GHSA-q2qr-3c2p-9235
References
Advisory 3
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-2020-12758 · CVE Program
- CVE-2020-12758 · NVD
- FIRST EPSS
- GHSA-q2qr-3c2p-9235 · GitHub Advisory Database · CC BY 4.0
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