CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NCVE-2023-47090
Medium (6.5) in linuxfoundation nats-server. EPSS 0.8% chance of exploitation in the next 30 days. Fixed in github.com/nats-io/nats-server/v2 2.10.2, 2.9.23.
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.
Severity
- EPSS
- 0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-31)
- CWE
- CWE-863
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linuxfoundation:nats-server
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-fr2g-9hjm-wr23 | Go | github.com/nats-io/nats-server/v2 | >=2.2.0 <2.9.23 | 2.9.23 |
| GHSA-fr2g-9hjm-wr23 | Go | github.com/nats-io/nats-server/v2 | >=2.10.0 <2.10.2 | 2.10.2 |
| GO-2023-2133 | Go | github.com/nats-io/nats-server/v2 | >=2.2.0 <2.9.23 >=2.10.0 <2.10.2 | 2.9.23, 2.10.2 |
References
- http://www.openwall.com/lists/oss-security/2023/10/30/1
- https://github.com/nats-io/nats-server/security/advisories/GHSA-fr2g-9hjm-wr23
- https://www.openwall.com/lists/oss-security/2023/10/13/2
- http://www.openwall.com/lists/oss-security/2023/10/30/1
- https://github.com/nats-io/nats-server/security/advisories/GHSA-fr2g-9hjm-wr23