CVE-2020-26521

Description

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

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.68% Top 30%
Vendor Advisory fedoraproject.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/nats-io/nats-server/commits/master third party advisory patch
http://www.openwall.com/lists/oss-security/2020/11/02/2 third party advisory mailing list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VT67XCLIIBYRT762SVFBYFFTQFVSM3SI/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-26521?
CVE-2020-26521 has been scored as a high severity vulnerability.
How to fix CVE-2020-26521?
To fix CVE-2020-26521, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-26521 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-26521 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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