CVE-2026-33219

Katalog CVE

CVSS 5.3 · Medium EPSS 1,0%

Kerentanan Allocation of Resources Without Limits or Throttling pada linuxfoundation nats-server. Skor CVSS 3.1 5.3 (Medium) menurut github.com.

Deskripsi (NVD)

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, a malicious client which can connect to the WebSockets port can cause unbounded memory use in the nats-server before authentication; this requires sending a corresponding amount of data. This is a milder variant of CVE-2026-27571. That earlier issue was a compression bomb, this vulnerability is not. Attacks against this new issue thus require significant client bandwidth. Versions 2.11.15 and 2.12.6 contain a fix. As a workaround, disable websockets if not required for project deployment.

Rincian

Terbit di NVD

25 Maret 2026

Terakhir diubah

9 September 2026

Status NVD

Modified

CVSS 3.1

5.3 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-770: Allocation of Resources Without Limits or Throttling

EPSS (30 hari)

1,0% peluang dieksploitasi; lebih tinggi dari 61,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://advisories.nats.io/CVE/secnote-2026-02.txt mitigasi · advisory vendor
• https://advisories.nats.io/CVE/secnote-2026-11.txt mitigasi · advisory vendor
• https://github.com/advisories/GHSA-qrvq-68c2-7grw mitigasi · advisory vendor
• https://github.com/nats-io/nats-server/security/advisories/GHSA-8r68-gvr4-jh7j mitigasi · advisory vendor
• https://access.redhat.com/errata/RHSA-2026:21769
• https://access.redhat.com/errata/RHSA-2026:22347
• https://access.redhat.com/errata/RHSA-2026:23345
• https://access.redhat.com/security/cve/CVE-2026-33219
• https://bugzilla.redhat.com/show_bug.cgi?id=2451445
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33219.json