CVE-2019-12291
HashiCorp Consul Incorrect Access Control vulnerability
HashiCorp Consul 1.4.0 through 1.5.0 has Incorrect Access Control. Keys not matching a specific ACL rule used for prefix matching in a policy can be deleted by a token using that policy even with default deny settings configured.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
HashiCorp Consul 1.4.0 through 1.5.0 has Incorrect Access Control. Keys not matching a specific ACL rule used for prefix matching in a policy can be deleted by a token using that policy even with default deny settings configured.
- Record
CVE-2019-12291- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 6.4 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:P - Updated
- 2026-11-02
CVE List No score
HashiCorp Consul 1.4.0 through 1.5.0 has Incorrect Access Control. Keys not matching a specific ACL rule used for prefix matching in a policy can be deleted by a token using that policy even with default deny settings configured.
- Record
CVE-2019-12291- Updated
- 2026-11-02
EUVDEUVD-2023-1815 No score
HashiCorp Consul 1.4.0 through 1.5.0 has Incorrect Access Control. Keys not matching a specific ACL rule used for prefix matching in a policy can be deleted by a token using that policy even with default deny settings configured.
- Record
EUVD-2023-1815- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h65h-v7fw-4p38
HashiCorp Consul Incorrect Access Control vulnerability
HashiCorp Consul 1.4.0 through 1.5.0 has Incorrect Access Control. Keys not matching a specific ACL rule used for prefix matching in a policy can be deleted by a token using that policy even with default deny settings configured.
Specific Go Packages Affected
github.com/hashicorp/consul/acl
- Record
GHSA-h65h-v7fw-4p38- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-284
- Updated
- 2026-11-02
OSV
HashiCorp Consul 1.4.0 through 1.5.0 has Incorrect Access Control. Keys not matching a specific ACL rule used for prefix matching in a policy can be deleted by a token using that policy even with default deny settings configured.
- Record
CVE-2019-12291- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2019-12291
HashiCorp Consul 1.4.0 through 1.5.0 has Incorrect Access Control. Keys not matching a specific ACL rule used for prefix matching in a policy can be deleted by a token using that policy even with default deny settings configured.
- Record
DEBIAN-CVE-2019-12291- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVGHSA-h65h-v7fw-4p38
HashiCorp Consul Incorrect Access Control vulnerability
HashiCorp Consul 1.4.0 through 1.5.0 has Incorrect Access Control. Keys not matching a specific ACL rule used for prefix matching in a policy can be deleted by a token using that policy even with default deny settings configured.
Specific Go Packages Affected
github.com/hashicorp/consul/acl
- Record
GHSA-h65h-v7fw-4p38- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-284
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2019-12291
HashiCorp Consul 1.4.0 through 1.5.0 has Incorrect Access Control. Keys not matching a specific ACL rule used for prefix matching in a policy can be deleted by a token using that policy even with default deny settings configured.
- Record
UBUNTU-CVE-2019-12291- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVGO-2023-1852 No score
HashiCorp Consul Incorrect Access Control vulnerability in github.com/hashicorp/consul
HashiCorp Consul Incorrect Access Control vulnerability in github.com/hashicorp/consul
- Record
GO-2023-1852- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/hashicorp/consulGo |
1.4.0 up to 1.5.1 | 1.5.1 |
consulDebian:11 |
before 1.4.5+dfsg1-1 | 1.4.5+dfsg1-1 |
consulUbuntu:18.04:LTS |
All versions, plus listed versions 0.6.4~dfsg-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-2019-12291 is a high vulnerability (CVSS 7.5) in Hashicorp Consul, published June 6, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.16%, the 67th percentile. Fixed in github.com/hashicorp/consul 1.5.1.
References
github.com/hashicorp/consul/issues/5888
nvd.nist.gov/vuln/detail/CVE-2019-12291
hashicorp.com/blog/category/consul
security-tracker.debian.org/tracker/CVE-2019-12291
ubuntu.com/security/CVE-2019-12291
cve.org/CVERecord?id=CVE-2019-12291