What is CVE-2020-26521?

CVE-2020-26521 is a high-severity vulnerability in Linuxfoundation Nats-server, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2020-11-06.

How severe is CVE-2020-26521?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Linuxfoundation Nats-server

CVE-2020-26521

The JWT library in NATS nats-server before 2.1.9 allows a denial of service (a nil dereference in Go code).

EPSS: 0.021 (79.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linuxfoundation Nats-server
Fedoraproject Fedora — versions 33
N/a — versions n/a

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (x_refsource_CONFIRM, Mailing List, Third Party Advisory)
cve@mitre.org (x_refsource_FEDORA, vendor-advisory)

Frequently asked questions

What is CVE-2020-26521?: CVE-2020-26521 is a high-severity vulnerability in Linuxfoundation Nats-server, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2020-11-06.
How severe is CVE-2020-26521?: High severity. CVSS v3 base score is 7.5 out of 10.