CVE-2020-13250
Allocation of Resources Without Limits or Throttling in Hashicorp Consul
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.
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
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2020-13250- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-770
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2020-13250- Updated
- 2026-11-02
EUVDEUVD-2021-1185 No score
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.
- Record
EUVD-2021-1185- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rqjq-mrgx-85hp
Allocation of Resources Without Limits or Throttling in Hashicorp Consul
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.
Specific Go Packages Affected
github.com/hashicorp/consul/agent/config
Fix
The vulnerability is fixed in versions 1.6.6 and 1.7.4.
- Record
GHSA-rqjq-mrgx-85hp- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2020-13250- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2020-13250
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.
- Record
DEBIAN-CVE-2020-13250- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Show 4 moreShow less
OSVGHSA-rqjq-mrgx-85hp
Allocation of Resources Without Limits or Throttling in Hashicorp Consul
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.
Specific Go Packages Affected
github.com/hashicorp/consul/agent/config
Fix
The vulnerability is fixed in versions 1.6.6 and 1.7.4.
- Record
GHSA-rqjq-mrgx-85hp- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-13250
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.
- Record
UBUNTU-CVE-2020-13250- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVBIT-consul-2020-13250 No score
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.
- Record
BIT-consul-2020-13250- Updated
- 2026-11-02
OSVGO-2022-0879 No score
Allocation of Resources Without Limits or Throttling in Hashicorp Consul in github.com/hashicorp/consul
Allocation of Resources Without Limits or Throttling in Hashicorp Consul in github.com/hashicorp/consul
- Record
GO-2022-0879- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/hashicorp/consulGo |
1.2.0 up to 1.6.6 | 1.6.6 |
github.com/hashicorp/consulGo |
1.7.0 up to 1.7.4 | 1.7.4 |
consulBitnami |
1.2.0 up to 1.6.6, 1.7.0 up to 1.7.4 | 1.6.61.7.4 |
consulDebian:11 |
before 1.7.4+dfsg1-1 | 1.7.4+dfsg1-1 |
github.com/hashicorp/consulGo |
1.2.0 up to 1.6.6, 1.7.0 up to 1.7.4 | 1.6.61.7.4 |
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 |
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-2020-13250 is a high vulnerability (CVSS 7.5) in Hashicorp Consul, published June 11, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.92%, the 87th percentile. Fixed in github.com/hashicorp/consul 1.6.6.
References
github.com/hashicorp/consul/pull/8023
nvd.nist.gov/vuln/detail/CVE-2020-13250
security-tracker.debian.org/tracker/CVE-2020-13250
ubuntu.com/security/CVE-2020-13250
cve.org/CVERecord?id=CVE-2020-13250