HIGH🇬🇧 English

CVE-2026-27889

CVSS 7.5v3.1pub. 2026-03-25upd. 2026-06-30

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Starting in version 2.2.0 and prior to versions 2.11.14 and 2.12.5, a missing sanity check on a WebSockets frame could trigger a server panic in the nats-server. This happens before authentication, and so is exposed to anyone who can connect to the websockets port. Versions 2.11.14 and 2.12.5 contains a fix. A workaround is available. The vulnerability only affects deployments which use WebSockets and which expose the network port to untrusted end-points. If one is able to do so, a defense in depth of restricting either of these will mitigate the attack.

oryginał EN
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  • Linuxfoundation Nats Server

    APP
    Linuxfoundation
    2.2.0 – 2.11.14 (bez)2.12.0 – 2.12.5 (bez)
🔵
ZWERYFIKUJ U PRODUCENTA
Brak jednoznacznych danych o patchu. Sprawdź referencje od producenta.
CWE
Referencje

Powiązane podatności

CVE-2022-28357CRITICAL9.8ten sam produkt

NATS nats-server 2.2.0 through 2.7.4 allows directory traversal because of an unintended path to a management ...

CVE-2020-26892CRITICAL9.8ten sam produkt

The JWT library in NATS nats-server before 2.1.9 has Incorrect Access Control because of how expired credentia...

CVE-2026-29785HIGH7.5ten sam produkt

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versi...

CVE-2026-33216HIGH8.6ten sam produkt

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versi...

CVE-2026-33217HIGH7.1ten sam produkt

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versi...