VDB

CVE-2020-26892

CVE-2020-26892 PUBLISHED CVSS 9.800000190734863 CRITICAL

Incorrect handling of credential expiry by /nats-io/nats-server

Record from NVD · Published November 6, 2020

github.com/nats-io/jwt is fixed in 1.1.0 (Go Modules)

The JWT library in NATS nats-server before 2.1.9 has Incorrect Access Control because of how expired credentials are handled.

EPSS 2.33% · 83.5th percentile

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
github.com/nats-io/jwtGo Modules1.1.0
github.com/nats-io/nats-server/v2Go Modules2.1.9
nats-serverlinuxfoundation2.1.9

Risk scores

CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
2.33%
83.5th percentile

Affected products

VendorProductVersions
fedoraprojectfedora33
linuxfoundationnats-server0

Timeline

  • Nov 6, 2020 CVE Published
  • Apr 14, 2021 EPSS Score (30 in total, the first dated here)
  • Mar 10, 2026 Security Advisory
  • Jun 17, 2026 CVE Updated
  • Sep 1, 2026 Coalition ESS Score

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2020-26892
vulnetix vdb fixes CVE-2020-26892

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2020-26892/fixes/registry"

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