Vulnerability Description
The JWT library in NATS nats-server before 2.1.9 allows a denial of service (a nil dereference in Go code).
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linuxfoundation | Nats-Server | < 2.1.9 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2020/11/02/2Mailing ListThird Party Advisory
- https://github.com/nats-io/nats-server/commits/masterPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- http://www.openwall.com/lists/oss-security/2020/11/02/2Mailing ListThird Party Advisory
- https://github.com/nats-io/nats-server/commits/masterPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2020-26521?
CVE-2020-26521 is a vulnerability with a CVSS score of 7.5 (HIGH). The JWT library in NATS nats-server before 2.1.9 allows a denial of service (a nil dereference in Go code).
How severe is CVE-2020-26521?
CVE-2020-26521 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-26521?
Check the references section above for vendor advisories and patch information. Affected products include: Linuxfoundation Nats-Server, Fedoraproject Fedora.