Description
NATS nats-server before 2.9.23 and 2.10.x before 2.10.2 has an authentication bypass. An implicit $G user in an authorization block can sometimes be used for unauthenticated access, even when the intention of the configuration was for each user to have an account. The earliest affected version is 2.2.0.
Metrics
CVSS 3.1 6.5/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://www.openwall.com/lists/oss-security/2023/10/30/1Mailing List
- https://github.com/nats-io/nats-server/security/advisories/GHSA-fr2g-9hjm-wr23Vendor Advisory
- https://www.openwall.com/lists/oss-security/2023/10/13/2Mailing List, Mitigation
- http://www.openwall.com/lists/oss-security/2023/10/30/1Mailing List
- https://github.com/nats-io/nats-server/security/advisories/GHSA-fr2g-9hjm-wr23Vendor Advisory
- https://www.openwall.com/lists/oss-security/2023/10/13/2Mailing List, Mitigation
Timeline
- Published
- Oct 30, 2023
- Last modified
- Jun 17, 2026
- NVD status
- Modified