This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-58213 →
DEBIAN-CVE-2026-58213
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.1 and 2.12.9, an MQTT client could inc...
Original description
The description as published by the source.
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.1 and 2.12.9, an MQTT client could include protocol control characters in subscription filters that were later forwarded as NATS protocol data to route or leafnode connections, corrupting the forwarded protocol stream and allowing injection of unintended NATS protocol operations. This issue is fixed in versions 2.14.1 and 2.12.9.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
nats-server
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13
nats-server
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14
nats-server
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14.1-1"}]}]
References
- advisory security-tracker.debian.org