CVE-2020-28053
Privilege Escalation in HashiCorp Consul
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2020-28053- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2020-28053- Updated
- 2026-11-02
EUVDEUVD-2024-0275 No score
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.
- Record
EUVD-2024-0275- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6m72-467w-94rh
Privilege Escalation in HashiCorp Consul
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.
- Record
GHSA-6m72-467w-94rh- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-732, CWE-863
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2020-28053- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2020-28053
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.
- Record
DEBIAN-CVE-2020-28053- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Show 4 moreShow less
OSVGHSA-6m72-467w-94rh
Privilege Escalation in HashiCorp Consul
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.
- Record
GHSA-6m72-467w-94rh- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-732, CWE-863
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-28053
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.
- Record
UBUNTU-CVE-2020-28053- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVBIT-consul-2020-28053 No score
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.
- Record
BIT-consul-2020-28053- Updated
- 2026-11-02
OSVGO-2024-2505 No score
Privilege Escalation in HashiCorp Consul in github.com/hashicorp/consul
Privilege Escalation in HashiCorp Consul in github.com/hashicorp/consul
- Record
GO-2024-2505- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/hashicorp/consulGo |
1.2.0 up to 1.6.10 | 1.6.10 |
github.com/hashicorp/consulGo |
1.7.0 up to 1.7.10 | 1.7.10 |
github.com/hashicorp/consulGo |
1.8.0 up to 1.8.6 | 1.8.6 |
consulBitnami |
1.2.0 up to 1.6.10, 1.7.0 up to 1.7.10, 1.8.0 up to 1.8.6 | 1.6.101.7.101.8.6 |
consulDebian:11 |
before 1.8.6+dfsg1-1 | 1.8.6+dfsg1-1 |
github.com/hashicorp/consulGo |
1.2.0 up to 1.6.10, 1.7.0 up to 1.7.10, 1.8.0 up to 1.8.6 | 1.6.101.7.101.8.6 |
consulUbuntu:18.04:LTS |
All versions, plus listed versions 0.6.4~dfsg-3 |
None known |
consulUbuntu:20.04:LTS |
All versions, plus listed versions 1.0.7~dfsg1-5ubuntu11.4.4~dfsg1-2ubuntu21.5.2+dfsg1-61.5.2+dfsg1-101.5.2+dfsg1-121.5.2+dfsg2-14 |
None known |
consulUbuntu:22.04:LTS |
All versions, plus listed versions 1.7.4+dfsg1-11.8.7+dfsg1-3 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-28053 is a medium vulnerability (CVSS 6.5) in Hashicorp Consul, published November 23, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.45%, the 73rd percentile. Fixed in github.com/hashicorp/consul 1.6.10.