CVE-2020-28466

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.

• http://www.openwall.com/lists/oss-security/2021/03/16/1Mailing List
• http://www.openwall.com/lists/oss-security/2021/03/16/2Mailing List, Third Party Advisory
• https://github.com/nats-io/nats-server/pull/1731Patch, Third Party Advisory
• https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMNATSIONATSSERVERSERVER-1042967Third Party Advisory
• http://www.openwall.com/lists/oss-security/2021/03/16/1Mailing List
• http://www.openwall.com/lists/oss-security/2021/03/16/2Mailing List, Third Party Advisory
• https://github.com/nats-io/nats-server/pull/1731Patch, Third Party Advisory
• https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMNATSIONATSSERVERSERVER-1042967Third Party Advisory

Published

Mar 7, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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