XSS in Broadcom Rabbitmq_server
CVE-2026-44839
RabbitMQ is a messaging and streaming broker. From 3.7.0 to before 4.1.2 and 4.0.13, This vulnerability is fixed in 4.1.2 and 4.0.13.
EPSS: 0.001 (18.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Broadcom Rabbitmq_server
- Rabbitmq Rabbitmq-server — versions >= 3.7.0, < 4.0.13, >= 4.1.0-alpha, < 4.1.2
Weakness classification (CWE)
References
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-44839?
- CVE-2026-44839 is a medium-severity vulnerability in Broadcom Rabbitmq_server, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 4.8/10. Published 2026-05-27.
- How severe is CVE-2026-44839?
- Medium severity. CVSS v3 base score is 4.8 out of 10.