CVE-2020-25201 json
Denial of service in HashiCorp Consul
published 2020-11-04 6 y ago modified 2026-06-17 4 mo ago also BIT-consul-2020-25201 , EUVD-2024-0243 , GHSA-496g-fr33-whrf , GO-2024-2501
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.6%
- EPSS 2.6% chance of exploitation in 30 days, percentile 85%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/hashicorp/consul 1.7.9, 1.8.5
- consul Debian 11 1.8.6+dfsg1-1
debian advisories DEBIAN-CVE-2020-25201
- github.com/hashicorp/consul#9024 pull request
- github.com/hashicorp/consul/releases/tag/v1.8.5 release
Exploit prediction
2.61% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/hashicorp/consul | >=1.7.0, <1.7.9 >=1.8.0, <1.8.5 |
1.7.9 1.8.5 |
| bitnami | consul | >=1.7.0, <=1.8.4 |
no fix listed |
Classification
References
-
github.com
/hashicorp/consul/pull/9024
web, patch
-
security.gentoo.org
/glsa/202208-09
vendor-advisory, web, third-party-advisory
-
hashicorp.com
/blog/category/consul
web, vendor-advisory
-
github.com
/hashicorp/consul/blob/master/CHANGELOG.md#185-october-23-2020
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-25201
advisory
-
github.com
/hashicorp/consul/releases/tag/v1.8.5
web
-
github.com
/advisories/GHSA-496g-fr33-whrf
advisory
Sources
- CVE List CVE-2020-25201
- GitHub Advisory GHSA-496g-fr33-whrf
- NVD CVE-2020-25201
- OSV BIT-consul-2020-25201
- OSV GO-2024-2501
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