CVE catalog
CVE-2023-47090
nats-server: CVE-2023-47090
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.66% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | nats-server | sid | 2.15.1-1 | fixed |
| Debian | nats-server | forky | 2.15.1-1 | fixed |
| Debian | nats-server | trixie | 2.10.27-1 | fixed |
| Debian | nats-server | bookworm | 2.9.10-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | nats-server | source | sid | 2.10.3-1 | not yet assigned | Not reported | Not reported |
| Debian | nats-server | source | forky | 2.10.3-1 | not yet assigned | Not reported | Not reported |
| Debian | nats-server | source | trixie | 2.10.3-1 | not yet assigned | Not reported | Not reported |
| Debian | nats-server | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
Notes
[bookworm] nats-server: Minor issue
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.