CVE-2026-29785
EUVD-2026-1596325.03.2026, 20:16
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.
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| linuxfoundation | nats-server | 𝑥 < 2.11.14 |
| linuxfoundation | nats-server | 2.12.0 ≤ 𝑥 < 2.12.5 |
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| Red Hat | Multicluster Global Hub 1.4.5 | 1779579439 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat multicluster global hub 1.5.0 | 1778867753 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat multicluster global hub 1.6.0 | 1780167118 ≤ 𝑥 < * | ADP |
Debian Releases
Ubuntu Releases
Common Weakness Enumeration
- CWE-476 - NULL Pointer DereferenceA NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
- CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)The software does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output.
References