CVE-2020-25201
Denial of service in HashiCorp Consul
HashiCorp Consul Enterprise version 1.7.0 up to 1.8.4 includes a namespace replication bug which can be triggered to cause denial of service via infinite Raft writes. Fixed in 1.7.9 and 1.8.5.
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 Enterprise version 1.7.0 up to 1.8.4 includes a namespace replication bug which can be triggered to cause denial of service via infinite Raft writes. Fixed in 1.7.9 and 1.8.5.
- Record
CVE-2020-25201- 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 - Updated
- 2026-11-02
CVE List No score
HashiCorp Consul Enterprise version 1.7.0 up to 1.8.4 includes a namespace replication bug which can be triggered to cause denial of service via infinite Raft writes. Fixed in 1.7.9 and 1.8.5.
- Record
CVE-2020-25201- Updated
- 2026-11-02
EUVDEUVD-2024-0243 No score
HashiCorp Consul Enterprise version 1.7.0 up to 1.8.4 includes a namespace replication bug which can be triggered to cause denial of service via infinite Raft writes. Fixed in 1.7.9 and 1.8.5.
- Record
EUVD-2024-0243- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-496g-fr33-whrf
Denial of service in HashiCorp Consul
HashiCorp Consul Enterprise versions 1.7.0 up to 1.7.8 and 1.8.0 up to 1.8.4 includes a namespace replication bug which can be triggered to cause denial of service via infinite Raft writes. Fixed in 1.7.9 and 1.8.5.
- Record
GHSA-496g-fr33-whrf- 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-400, CWE-834
- Updated
- 2026-11-02
OSV
HashiCorp Consul Enterprise version 1.7.0 up to 1.8.4 includes a namespace replication bug which can be triggered to cause denial of service via infinite Raft writes. Fixed in 1.7.9 and 1.8.5.
- Record
CVE-2020-25201- 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-2020-25201
HashiCorp Consul Enterprise version 1.7.0 up to 1.8.4 includes a namespace replication bug which can be triggered to cause denial of service via infinite Raft writes. Fixed in 1.7.9 and 1.8.5.
- Record
DEBIAN-CVE-2020-25201- 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-496g-fr33-whrf
Denial of service in HashiCorp Consul
HashiCorp Consul Enterprise versions 1.7.0 up to 1.7.8 and 1.8.0 up to 1.8.4 includes a namespace replication bug which can be triggered to cause denial of service via infinite Raft writes. Fixed in 1.7.9 and 1.8.5.
- Record
GHSA-496g-fr33-whrf- 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-400, CWE-834
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-25201
HashiCorp Consul Enterprise version 1.7.0 up to 1.8.4 includes a namespace replication bug which can be triggered to cause denial of service via infinite Raft writes. Fixed in 1.7.9 and 1.8.5.
- Record
UBUNTU-CVE-2020-25201- 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-2020-25201 No score
HashiCorp Consul Enterprise version 1.7.0 up to 1.8.4 includes a namespace replication bug which can be triggered to cause denial of service via infinite Raft writes. Fixed in 1.7.9 and 1.8.5.
- Record
BIT-consul-2020-25201- Updated
- 2026-11-02
OSVGO-2024-2501 No score
Denial of service in HashiCorp Consul in github.com/hashicorp/consul
Denial of service in HashiCorp Consul in github.com/hashicorp/consul
- Record
GO-2024-2501- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/hashicorp/consulGo |
1.7.0 up to 1.7.9 | 1.7.9 |
github.com/hashicorp/consulGo |
1.8.0 up to 1.8.5 | 1.8.5 |
consulBitnami |
1.7.0 to 1.8.4 | None known |
consulDebian:11 |
before 1.8.6+dfsg1-1 | 1.8.6+dfsg1-1 |
github.com/hashicorp/consulGo |
1.7.0 up to 1.7.9, 1.8.0 up to 1.8.5 | 1.7.91.8.5 |
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-2020-25201 is a high vulnerability (CVSS 7.5) in Hashicorp Consul, published November 4, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.61%, the 85th percentile. Fixed in github.com/hashicorp/consul 1.7.9.