UBUNTU-CVE-2020-26521

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Source
https://ubuntu.com/security/CVE-2020-26521
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-26521.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-26521
Upstream
Published
2020-11-06T08:15:00Z
Modified
2025-09-08T16:46:23Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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

References

Affected packages

Ubuntu:Pro:20.04:LTS / golang-github-nats-io-jwt

Package

Name
golang-github-nats-io-jwt
Purl
pkg:deb/ubuntu/golang-github-nats-io-jwt@0.0~git20181120.285cf2c-4?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.0~git20181120.285cf2c-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-nats-io-jwt-dev",
            "binary_version": "0.0~git20181120.285cf2c-4"
        }
    ]
}

Ubuntu:22.04:LTS / golang-github-nats-io-jwt

Package

Name
golang-github-nats-io-jwt
Purl
pkg:deb/ubuntu/golang-github-nats-io-jwt@0.0~git20181120.285cf2c-4.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.0~git20181120.285cf2c-4.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-nats-io-jwt-dev",
            "binary_version": "0.0~git20181120.285cf2c-4.1"
        }
    ]
}

Ubuntu:24.04:LTS / golang-github-nats-io-jwt

Package

Name
golang-github-nats-io-jwt
Purl
pkg:deb/ubuntu/golang-github-nats-io-jwt@2.5.2-2?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.4.1-1
2.5.2-1
2.5.2-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-nats-io-jwt-dev",
            "binary_version": "2.5.2-2"
        }
    ]
}

Ubuntu:25.04 / golang-github-nats-io-jwt

Package

Name
golang-github-nats-io-jwt
Purl
pkg:deb/ubuntu/golang-github-nats-io-jwt@2.7.3-1?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.5.2-2
2.7.3-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-nats-io-jwt-dev",
            "binary_version": "2.7.3-1"
        }
    ]
}