Nats Server
Vendor:
First CVE: Jul 29, 2019 · Active for 6 years
36
Total CVEs
More Total CVEs than 97% of tracked products
6.0
Avg CVEs / Year
Higher CVE frequency than 90% of tracked products
6.8
Avg CVSS
Higher Avg CVSS than 36% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Nats Server over time
Volume of CVEsAvg CVSS Base Score
First CVE
Jul 29, 2019
6 years ago
Most Recent CVE
Jul 8, 2026
16 days ago
CVE Severity & Scoring
Nats Server36 CVEs
47%
47%
All CVEs352,231 CVEs
45%
40%
11%
MediumHighCritical
Attack Vector
Local0 (0.0%)
Network35 (97.2%)
Unknown0 (0.0%)
Physical0 (0.0%)
Adjacent Network1 (2.8%)
Attack Complexity
Low34 (94.4%)
High2 (5.6%)
Unknown0 (0.0%)
User Interaction
None36 (100.0%)
Unknown0 (0.0%)
Required0 (0.0%)
Privileges Required
Low15 (41.7%)
High1 (2.8%)
None20 (55.6%)
Unknown0 (0.0%)
Top CVEs
Signals from CVEs in this product scope (36 CVEs).
36 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2026-58253HIGH NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.0, 2.12.7, and 2.11.16, when no_auth_user was configured, a parser f | Jul 8, 2026 | 8.8 | 39 | NO | NO |
CVE-2026-58208HIGH NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, a WebSocket listener could route requests for the MQT | Jul 8, 2026 | 7.5 | 36 | NO | NO |
CVE-2026-58210HIGH NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, an unauthenticated MQTT client could cause the server | Jul 8, 2026 | 7.5 | 34 | NO | NO |
CVE-2026-58250HIGH NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.12.8 and 2.11.17, an unauthenticated peer with network access to a leaf | Jul 8, 2026 | 7.5 | 34 | NO | NO |
CVE-2026-58252MEDIUM NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.0, 2.12.7, and 2.11.16, an authenticated user could receive messages | Jul 8, 2026 | 6.5 | 34 | NO | NO |
CVE-2026-33216HIGH NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, for MQTT deployments using usercodes/passwords | Mar 25, 2026 | 7.5 | 34 | NO | NO |
CVE-2026-33218HIGH NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, a client which can connect to the leafnode por | Mar 25, 2026 | 7.5 | 33 | NO | NO |
CVE-2026-29785HIGH NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.14 and 2.12.5, if the nats-server has the "leafnode" configur | Mar 25, 2026 | 7.5 | 33 | NO | NO |
CVE-2026-27889HIGH NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Starting in version 2.2.0 and prior to versions 2.11.14 and 2.12.5, a missing sanity | Mar 25, 2026 | 7.5 | 33 | NO | NO |
CVE-2026-58251MEDIUM NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.0, 2.12.7, and 2.11.16, an authenticated user with subscription deny | Jul 8, 2026 | 6.5 | 32 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (36 CVEs).
CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%
Social Chatter
Signals from CVEs in this product scope (36 CVEs).
Media Mentions
Signals from CVEs in this product scope (36 CVEs).
Top CNAs Publishing CVEs For Nats Server
Top CWEs
Versions
No cataloged versions.