CVE-2021-3127
HIGH7.5EPSS 0.29%Duplicate Advisory: Incorrect Access Control in github.com/nats-io/jwt and github.com/nats-io/nats-server/v2
Published: 2/15/2022Modified: 2/4/2026
Also known as:GHSA-62mh-w5cv-p88cGHSA-9r5x-fjv3-q6h4GHSA-j756-f273-xhp4BIT-nats-2021-3127CGA-3xwf-56gh-qxqqGO-2022-0386
Description
## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-62mh-w5cv-p88c (for github.com/nats-io/jwt) and GHSA-j756-f273-xhp4 (for github.com/nats-io/nats-server). This link is maintained to preserve external references. ## Original Description NATS Server (github.com/nats-io/nats-server/v2/server) 2.x before 2.2.0 and JWT library (github.com/nats-io/jwt/v2) before 2.0.1 have Incorrect Access Control because Import Token bindings are mishandled.
Affected packages (10)
- Bitnami/nats>= 2.0.0, < 2.2.0
- Debian/golang-github-nats-io-jwtfrom 0, < 2.2.0-1
- Go/github.com/nats-io/jwtfrom 0, <= 1.2.2
- Go/github.com/nats-io/jwtfrom 0, < 1.2.3-0.20210314221642-a826c77dc9d2
- Go/github.com/nats-io/jwtfrom 0, < 1.2.3-0.20210314221642-a826c77dc9d2
- Go/github.com/nats-io/jwt/v2from 0, < 2.0.1
- Go/github.com/nats-io/jwt/v2from 0, < 2.0.1
- Go/github.com/nats-io/jwt/v2from 0, < 2.0.1
- Go/github.com/nats-io/nats-server/v2from 0, < 2.2.0
- Go/github.com/nats-io/nats-server/v2from 0, < 2.2.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
References (11)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-3127
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-3127
- PATCHhttps://github.com/nats-io/jwt
- PATCHhttps://github.com/nats-io/nats-server
- WEBhttps://advisories.nats.io/CVE/CVE-2021-3127.txt
- WEBhttps://github.com/nats-io/jwt/commit/6c72fdd73e82fa9ebb151d84773baf4e9164c4ab
- WEBhttps://github.com/nats-io/jwt/pull/149
- WEBhttps://github.com/nats-io/jwt/pull/149/commits/a826c77dc9d2671c961b75ceefdb439c41029866
- WEBhttps://github.com/nats-io/jwt/security/advisories/GHSA-62mh-w5cv-p88c
- WEBhttps://github.com/nats-io/nats-server/commit/423b79440c80c863de9f4e20548504e6c5d5e403
- WEBhttps://github.com/nats-io/nats-server/security/advisories/GHSA-j756-f273-xhp4