CVE-2021-3127 is an Incorrect Access Control vulnerability affecting NATS Server versions prior to 2.2.0 and the JWT library before 2.0.1, caused by mishandled Import Token bindings. This vulnerability carries a High severity CVSS score of 7.5, indicating it is remotely exploitable with low complexity and no user interaction or privileges required, primarily impacting confidentiality. Despite the high confidentiality impact, there is no evidence of active exploitation, nor are public exploit tools available in Metasploit or ExploitDB. Community discussion and media coverage are absent, and its EPSS score suggests a very low probability of exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.0.0, < 2.2.0CPE matchmatch criteria | cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:* | ||
< 2.0.1CPE matchmatch criteria | cpe:2.3:a:nats:jwt_library:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.