DEBIAN-CVE-2026-58211

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Source
https://security-tracker.debian.org/tracker/CVE-2026-58211
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58211.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-58211
Upstream
Published
2026-07-08T21:16:52Z
Modified
2026-09-14T17:03:21Z
Severity
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, a client could be registered as the configured no_auth_user through a parser path used when the first client operation was not CONNECT, bypassing user-level connection restrictions such as allowed_connection_types or proxy_required that normal authentication would apply. This issue is fixed in versions 2.14.3 and 2.12.12.

References

Affected packages

Debian:12 / nats-server

Package

Name
nats-server
Purl
pkg:deb/debian/nats-server?arch=source&distro=bookworm

Affected ranges

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

Affected versions

2.*
2.9.10-1
2.9.19-1
2.10.1-1
2.10.3-1
2.10.4-1
2.10.7-1
2.10.16-1
2.10.18-1
2.10.24-1
2.10.27-1
2.12.4-1
2.12.6-1
2.14.1-1
2.14.3-1
2.14.6-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58211.json"

Debian:13 / nats-server

Package

Name
nats-server
Purl
pkg:deb/debian/nats-server?arch=source&distro=trixie

Affected ranges

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

Affected versions

2.*
2.10.27-1
2.12.4-1
2.12.6-1
2.14.1-1
2.14.3-1
2.14.6-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58211.json"

Debian:14 / nats-server

Package

Name
nats-server
Purl
pkg:deb/debian/nats-server?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.14.3-1

Affected versions

2.*
2.10.27-1
2.12.4-1
2.12.6-1
2.14.1-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58211.json"