CVE-2026-57214: rabbitmq server from 4.2.0 (inclusive), before 4.2.5 (exclusive); +1 more affected products

CVE-2026-57214. CVSS 3.1 base score 5.4 (MEDIUM, NVD). EPSS 0.0022 (percentile 0.11833), scored 24-Oct-2026.

Affected technology

rabbitmq server · from 4.2.0 (inclusive), before 4.2.5 (exclusive)
broadcom

rabbitmq-server · >= 4.2.0, < 4.2.5
rabbitmq

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

A user with permission to declare a queue or exchange can execute JavaScript in another user's browser. Vendor/CNA’s CVSS 4.0 assessment (base score 7.1/10) rates confidentiality impact as high; integrity and availability impact as none.

Published 25-Oct-2026 19:52 UTC

CWE: CWE-79
CCR priority: 21.7 /100 (P4)
CVSS 3.1: 5.4 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N · NVD
EPSS: 0.0022 · percentile 0.12339 · 2026-10-25
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-25 19:52:47.952465+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-25 19:51:06.643138+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-57214.html