CVE-2026-44839
RabbitMQ: Unsanitized vhost names allow for XSS in management UI
4.8
MEDIUM
CVSS 3.1
EPSS 0.06%
Description
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.
How to fix CVE-2026-44839
To remediate CVE-2026-44839, upgrade the affected package to a fixed version below.
- Bitnami/rabbitmq—upgrade to 4.0.13 or later
- —no fix listed
Is CVE-2026-44839 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 3.7.0, < 4.0.13, >= 4.1.0, < 4.1.2
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| osv | CVSS 3.1 | MEDIUM4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |