PT-2020-5727 · Nats.Io · Nats Server

Derekcollison

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Published

2020-11-22

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Updated

2024-08-21

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CVE-2020-28466

CVSS v2.0

7.8

High

VectorAV:N/AC:L/Au:N/C:N/I:N/A:C
Name of the Vulnerable Software and Affected Versions: github.com/nats-io/nats-server/server versions prior to a fixed version
Description: The issue is related to an uncontrolled resource consumption in the NATS messaging system server. This can be exploited by a remote attacker to cause a denial of service. Untrusted accounts can crash the server using configurations that represent service export/import cycles. Running a NATS service exposed to untrusted users presents a heightened risk. The maintainers of the NATS server encourage those running such services to build regularly from git to minimize risks.
Recommendations: As a temporary workaround, consider restricting access to untrusted accounts until a patch is available. For all versions of github.com/nats-io/nats-server/server, build regularly from git to obtain the latest fixes and minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Resource Exhaustion

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Weakness Enumeration

Related Identifiers

BDU:2021-01603
BIT-NATS-2020-28466
CVE-2020-28466
GHSA-M4JX-6526-VVHM
GO-2022-0855
SNYK-GOLANG-GITHUBCOMNATSIONATSSERVERSERVER-1042967

Affected Products

Nats Server