Denial of service vulnerability in NATS nats-server by NATS
CVE-2020-26521

7.5HIGH

Key Information:

Vendor

Linux
Status
Nats-server
Vendor
CVE Published:
6 November 2020

What is CVE-2020-26521?

The JWT library within NATS nats-server prior to version 2.1.9 contains a flaw that can lead to a denial of service situation. This vulnerability arises from a nil dereference in the Go programming language, impacting the stability of the server and potentially disrupting service availability for users. It's crucial for organizations utilizing affected versions to apply updates promptly to mitigate this risk.

References

https://github.com/nats-io/nats-server/commits/master
x_refsource_MISC
http://www.openwall.com/lists/oss-security/2020/11/02/2
x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisoryx_refsource_FEDORA

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.