HashiCorp Consul (and Consul Enterprise) 1.4.x before 1.4.3 allows a client to bypass…
Priority LOW 38CWE-284Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-284.
Summary
HashiCorp Consul (and Consul Enterprise) 1.4.x before 1.4.3 allows a client to bypass intended access restrictions and obtain the privileges of one other arbitrary token within secondary datacenters, because a token with literally "<hidden>" as its secret is used in unusual circumstances.
Why it matters now
EPSS 0.01251 69th percentileScored 2026-11-07
Fix Fixed github.com/hashicorp/consul (Go): 1.4.3
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) | 1.4.0 to before 1.4.3 | 1.4.3 | Patch available | GHSA-fhm8-cxcv-pwvc |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- github.com/hashicorp/consul (Go) Vendor— Affected 1.4.0 to before 1.4.3 Fixed in 1.4.3 Patch available GHSA-fhm8-cxcv-pwvc
Remediation
- Fix · GHSA-fhm8-cxcv-pwvc github.com/hashicorp/consul (Go) Fixed in 1.4.3 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2019-8336
- 2026-10-03 Alias added: GHSA-fhm8-cxcv-pwvc
References
Advisory 2
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-2019-8336 · CVE Program
- CVE-2019-8336 · NVD
- FIRST EPSS
- GHSA-fhm8-cxcv-pwvc · GitHub Advisory Database · CC BY 4.0
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