CVE-2020-26521
Panic in NATS JWT decoding in github.com/nats-io/jwt
7.5
HIGH
CVSS 3.1
EPSS 0.68%
Description
The JWT library in NATS nats-server before 2.1.9 allows a denial of service (a nil dereference in Go code).
How to fix CVE-2020-26521
To remediate CVE-2020-26521, upgrade the affected package to a fixed version below.
- Debian/golang-github-nats-io-jwt—upgrade to 2.2.0-1 or later
- Go/github.com/nats-io/jwt—upgrade to 1.1.0 or later
- —upgrade to 1.1.0 or later
- —upgrade to 2.1.9 or later
Is CVE-2020-26521 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 2.2.0-1
- from 0, < 1.1.0
- from 0, < 1.1.0
- from 0, < 2.1.9
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:N/I:N/A:H |