Hashicorp Consul 1.6
Hashicorp Consul 1.6
The Hashicorp Consul 1.6 reached end of service life on Nov 24, 2020 — Hashicorp Consul no longer ships security patches or fixes for it. Our third-party support keeps it safe to run: 24/7 engineers manage issues, remediate vulnerabilities, and help you maintain compliance.
24/7 engineers own your Hashicorp Consul 1.6 incidents end to end.
Mitigation and patch-around guidance when the vendor no longer ships fixes.
Controls evidence and documentation that keep auditors satisfied.
Specifications
- product
- consul
- release
- 1.6
- product Label
- Hashicorp Consul
- release Label
- 1.6
- codename
- lts
- latest Version
- 1.6.10
- release Date
- 2019-08-23
- maintained
- source Url
- https://endoflife.date/consul
Lifecycle Dates
- End of Service Life
- Nov 24, 2020
- Last OEM Support
- Nov 24, 2020
OEM vs. 3rd Party Support
See how third-party support compares to the vendor contract for Hashicorp Consul 1.6 — monitoring, break/fix, vulnerability work, operations and compliance, before and after EOSL.
| Feature | OEM Support | 3rd Party Support |
|---|---|---|
| Post-EOSL Support | ||
| Break/Fix Support | Until EOSL | |
| 24/7 Monitoring | ||
| Vulnerability Scanning & Remediation | ||
| Managed Operations | ||
| Procedure & Configuration Review | ||
| Compliance & Audit Documentation | Limited | |
| Discounted Migration to Other Platforms |
Why Choose 3rd Party Support for Hashicorp Consul 1.6?
Vulnerability Remediation
Scanning, mitigation and patch-around guidance for Hashicorp Consul 1.6 when the vendor no longer ships fixes.
Compliance Maintenance
Procedure review, controls evidence and the documentation auditors ask for — maintained continuously, not scrambled at audit time.
24/7 Expert Support
Engineers who know this release monitor, manage and fix issues around the clock — break/fix to managed operations.
Hashicorp Consul 1.6 Support: Frequently Asked Questions
Is the Hashicorp Consul 1.6 still supported?
Hashicorp Consul ended support for the Hashicorp Consul 1.6 on Nov 24, 2020 — no more patches or fixes from the vendor. Third-party support keeps it covered: our engineers manage issues, remediate vulnerabilities, and help you maintain compliance for as long as you run it.
When is the Hashicorp Consul 1.6 end of service life (EOSL) date?
Hashicorp Consul lists the end of service life for the Hashicorp Consul 1.6 as Nov 24, 2020.
Can I keep using the Hashicorp Consul 1.6 after its EOSL date?
Yes. EOSL means Hashicorp Consul stops issuing patches and support — the software itself keeps running. Third-party support covers it from there: issue management, security vulnerability remediation, and the compliance documentation auditors ask for, for as long as you choose to run it.
How much does third-party support for the Hashicorp Consul 1.6 cost?
Typically 40-70% below the OEM maintenance renewal price. Exact pricing depends on quantity, service level and location — request a quote and we respond within 24 hours.
Known Vulnerabilities Affecting Hashicorp Consul 1.6
20 published CVEs affect the Hashicorp Consul 1.6, including 10 rated critical or high severity. Hashicorp Consul no longer ships security patches for this release — our engineers provide mitigation guidance, workarounds and hardening support.
| CVE | Severity | CVSS | Published | Summary |
|---|---|---|---|---|
| CVE-2021-37219 | HIGH | 8.8 | Sep 7, 2021 | HashiCorp Consul and Consul Enterprise 1.10.1 Raft RPC layer allows non-server agents with a valid certificate signed by the same CA to access server-only functionality, enabling privilege escalation. Fixed in 1.8.15, 1.9.9 and 1.10.2. |
| CVE-2021-3121 | HIGH | 8.6 | Jan 11, 2021 | An issue was discovered in GoGo Protobuf before 1.3.2. plugin/unmarshal/unmarshal.go lacks certain index validation, aka the "skippy peanut butter" issue. |
| CVE-2024-10006 | HIGH | 8.3 | Oct 30, 2024 | A vulnerability was identified in Consul and Consul Enterprise (“Consul”) such that using Headers in L7 traffic intentions could bypass HTTP header based access rules. |
| CVE-2024-10005 | HIGH | 8.1 | Oct 30, 2024 | A vulnerability was identified in Consul and Consul Enterprise (“Consul”) such that using URL paths in L7 traffic intentions could bypass HTTP request path-based access rules. |
| CVE-2022-29153 | HIGH | 7.5 | Apr 19, 2022 | HashiCorp Consul and Consul Enterprise up to 1.9.16, 1.10.9, and 1.11.4 may allow server side request forgery when the Consul client agent follows redirects returned by HTTP health check endpoints. Fixed in 1.9.17, 1.10.10, and 1.11.5. |
| CVE-2021-32574 | HIGH | 7.5 | Jul 17, 2021 | HashiCorp Consul and Consul Enterprise 1.3.0 through 1.10.0 Envoy proxy TLS configuration does not validate destination service identity in the encoded subject alternative name. Fixed in 1.8.14, 1.9.8, and 1.10.1. |
| CVE-2020-13250 | HIGH | 7.5 | Jun 11, 2020 | HashiCorp Consul and Consul Enterprise include an HTTP API (introduced in 1.2.0) and DNS (introduced in 1.4.3) caching feature that was vulnerable to denial of service. Fixed in 1.6.6 and 1.7.4. |
| CVE-2020-13170 | HIGH | 7.5 | Jun 11, 2020 | HashiCorp Consul and Consul Enterprise did not appropriately enforce scope for local tokens issued by a primary data center, where replication to a secondary data center was not enabled. Introduced in 1.4.0, fixed in 1.6.6 and 1.7.4. |
| CVE-2020-12758 | HIGH | 7.5 | Jun 11, 2020 | 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. |
| CVE-2020-7219 | HIGH | 7.5 | Jan 31, 2020 | HashiCorp Consul and Consul Enterprise up to 1.6.2 HTTP/RPC services allowed unbounded resource usage, and were susceptible to unauthenticated denial of service. Fixed in 1.6.3. |
| CVE-2025-11375 | MEDIUM | 6.5 | Oct 28, 2025 | Consul and Consul Enterprise’s (“Consul”) event endpoint is vulnerable to denial of service (DoS) due to lack of maximum value on the Content Length header. This vulnerability, CVE-2025-11375, is fixed in Consul Community Edition 1.22.0 and Consul Enterprise 1.22.0, 1.21.6, 1.20.8 and 1.18.12. |
| CVE-2025-11374 | MEDIUM | 6.5 | Oct 28, 2025 | Consul and Consul Enterprise’s (“Consul”) key/value endpoint is vulnerable to denial of service (DoS) due to incorrect Content Length header validation. This vulnerability, CVE-2025-11374, is fixed in Consul Community Edition 1.22.0 and Consul Enterprise 1.22.0, 1.21.6, 1.20.8 and 1.18.12. |
| CVE-2022-40716 | MEDIUM | 6.5 | Sep 23, 2022 | HashiCorp Consul and Consul Enterprise up to 1.11.8, 1.12.4, and 1.13.1 do not check for multiple SAN URI values in a CSR on the internal RPC endpoint, enabling leverage of privileged access to bypass service mesh intentions. Fixed in 1.11.9, 1.12.5, and 1.13.2." |
| CVE-2021-38698 | MEDIUM | 6.5 | Sep 7, 2021 | HashiCorp Consul and Consul Enterprise 1.10.1 Txn.Apply endpoint allowed services to register proxies for other services, enabling access to service traffic. Fixed in 1.8.15, 1.9.9 and 1.10.2. |
| CVE-2020-28053 | MEDIUM | 6.5 | Nov 23, 2020 | HashiCorp Consul and Consul Enterprise 1.2.0 up to 1.8.5 allowed operators with operator:read ACL permissions to read the Connect CA private key configuration. Fixed in 1.6.10, 1.7.10, and 1.8.6. |
| CVE-2024-10086 | MEDIUM | 6.1 | Oct 30, 2024 | A vulnerability was identified in Consul and Consul Enterprise such that the server response did not explicitly set a Content-Type HTTP header, allowing user-provided inputs to be misinterpreted and lead to reflected XSS. |
| CVE-2020-25864 | MEDIUM | 6.1 | Apr 20, 2021 | HashiCorp Consul and Consul Enterprise up to version 1.9.4 key-value (KV) raw mode was vulnerable to cross-site scripting. Fixed in 1.9.5, 1.8.10 and 1.7.14. |
| CVE-2020-12797 | MEDIUM | 5.3 | Jun 11, 2020 | HashiCorp Consul and Consul Enterprise failed to enforce changes to legacy ACL token rules due to non-propagation to secondary data centers. Introduced in 1.4.0, fixed in 1.6.6 and 1.7.4. |
| CVE-2020-7955 | MEDIUM | 5.3 | Jan 31, 2020 | HashiCorp Consul and Consul Enterprise 1.4.1 through 1.6.2 did not uniformly enforce ACLs across all API endpoints, resulting in potential unintended information disclosure. Fixed in 1.6.3. |
| CVE-2023-0845 | MEDIUM | 4.9 | Mar 9, 2023 | 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. |