VDB
DEBIAN-CVE-2026-29785
DEBIAN-CVE-2026-29785
PUBLISHED
CVSS 7.5 HIGH
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.14 and 2.12.5, if the nats-server has the "leafnode" configuration enabled (not default), then anyone who can connect can crash the nats-server by triggering a panic. This happens pre-authentication and requires that compression be enabled (which it is, by default, when leafnodes are used). Versions 2.11.14 and 2.12.5 contain a fix. As a workaround, disable compression on the leafnode port.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | nats-server | 2.12.4-1, 2.10.27-1, 0 |
| Debian:12 | nats-server | 2.9.19-1, 2.10.18-1, 2.10.27-1 |
| Debian:13 | nats-server | 2.12.4-1, 2.12.6-1, 2.10.27-1 |
Timeline
- Mar 25, 2026 CVE Published
- Apr 28, 2026 CVE Updated