DEBIAN-CVE-2026-58253

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Source
https://security-tracker.debian.org/tracker/CVE-2026-58253
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58253.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-58253
Upstream
Published
2026-07-08T20:16:54.943Z
Modified
2026-07-09T09:00:27.173797951Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L CVSS Calculator
Summary
[none]
Details

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.0, 2.12.7, and 2.11.16, when noauthuser was configured, a parser fast path intended for ordinary client connections could also apply to route or leafnode listeners, allowing an unauthenticated peer to bypass inter-server CONNECT authentication and operate with the privileges associated with that connection type. This issue is fixed in versions 2.14.0, 2.12.7, and 2.11.16.

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
0Unknown 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

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58253.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
0Unknown 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

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58253.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
0Unknown introduced version / All previous versions are affected
Fixed
2.14.1-1

Affected versions

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

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58253.json"