Vulnerability record · CVE-2020-28466 · published 7 March 2021
CVE-2020-28466: Linuxfoundation nats-server vulnerability
Linuxfoundation · Nats Server
This affects all versions of package github.com/nats-io/nats-server/server. Untrusted accounts are able to crash the server using configs that represent a service export/import cycles. Disclaimer from the maintainers: Running a NATS service which is exposed to untrusted users presents a heightened risk. Any remote execution flaw or equivalent seriousness, or denial-of-service by unauthenticated users, will lead to prompt releases by the NATS maintainers. Fixes for denial of service issues with no threat of remote execution, when limited to account holders, are likely to just be committed to the main development branch with no special attention. Those who are running such services are encouraged to build regularly from git.
Description
This affects all versions of package github.com/nats-io/nats-server/server. Untrusted accounts are able to crash the server using configs that represent a service export/import cycles. Disclaimer from the maintainers: Running a NATS service which is exposed to untrusted users presents a heightened risk. Any remote execution flaw or equivalent seriousness, or denial-of-service by unauthenticated users, will lead to prompt releases by the NATS maintainers. Fixes for denial of service issues with no threat of remote execution, when limited to account holders, are likely to just be committed to the main development branch with no special attention. Those who are running such services are encouraged to build regularly from git.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
| Link | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/03/16/1 | Mailing List |
| http://www.openwall.com/lists/oss-security/2021/03/16/2 | Mailing ListThird Party Advisory |
| https://github.com/nats-io/nats-server/pull/1731 | PatchThird Party Advisory |
| https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMNATSIONATSSERVERSERVER-1042967 | Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2021/03/16/1 | Mailing List |
| http://www.openwall.com/lists/oss-security/2021/03/16/2 | Mailing ListThird Party Advisory |
| https://github.com/nats-io/nats-server/pull/1731 | PatchThird Party Advisory |
| https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMNATSIONATSSERVERSERVER-1042967 | Third Party Advisory |
Track CVE-2020-28466 inside VULONE
Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.
Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2020-28466), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.
