CVE-2026-44839
published 2026-05-27CVE-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.
PriorityP420medium4.8CVSS 3.1
AVNACLPRHUIRSCCLILAN
EPSS
0.18%
7.8th percentile
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.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| broadcom | rabbitmq_server | >= 3.7.0 < 4.0.13 | 4.0.13 |
| broadcom | rabbitmq_server | >= 4.1.0 < 4.1.2 | 4.1.2 |
| rabbitmq | rabbitmq-server | — | — |
| rabbitmq | rabbitmq-server | — | — |
| rabbitmq | rabbitmq-server | — | — |
CVSS provenance
nvdv3.14.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
nvdv4.05.6MEDIUMCVSS: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
vendor_redhat4.8MEDIUM
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Red Hat
rabbitmq-server: RabbitMQ: Unsanitized vhost names allow for XSS in management UI
vendor_redhat·2026-05-27·CVSS 4.8
CVE-2026-44839 [MEDIUM] CWE-79 rabbitmq-server: RabbitMQ: Unsanitized vhost names allow for XSS in management UI
rabbitmq-server: RabbitMQ: Unsanitized vhost names allow for XSS in management UI
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.
A flaw was found in RabbitMQ, a messaging and streaming broker.
Unsanitized virtual host names allow for XSS in the the management UI pages that list virtual hosts if the attacker
manages to find a way to force a virtual host to restart. This vulnerability requires high privileges and user interaction, potentially leading to a low impact on confidentiality and integrity.
Statement: This flaw has a Low impact on Red Hat products. An attacker with high privileges could exploit an unsanitized virtual host name in the RabbitMQ management UI, leading to a Cross-Site Scripting (XS
VulDB
RabbitMQ rabbitmq-server up to 4.0.12/4.1.1 cross site scripting (GHSA-fh5r-jpm3-fjwp / Nessus ID 317957)
vuldb·2026-06-07·CVSS 4.8
CVE-2026-44839 [MEDIUM] RabbitMQ rabbitmq-server up to 4.0.12/4.1.1 cross site scripting (GHSA-fh5r-jpm3-fjwp / Nessus ID 317957)
A vulnerability was found in RabbitMQ rabbitmq-server up to 4.0.12/4.1.1. It has been declared as problematic. This issue affects some unknown processing. The manipulation results in basic cross site scripting.
This vulnerability is cataloged as CVE-2026-44839. The attack may be launched remotely. There is no exploit available.
It is recommended to upgrade the affected component.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-44839 rabbitmq-server: RabbitMQ: Unsanitized vhost names allow for XSS in management UI [fedora-all]
bugzilla·2026-06-17·CVSS 4.8
CVE-2026-44839 [MEDIUM] CVE-2026-44839 rabbitmq-server: RabbitMQ: Unsanitized vhost names allow for XSS in management UI [fedora-all]
CVE-2026-44839 rabbitmq-server: RabbitMQ: Unsanitized vhost names allow for XSS in management UI [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-44839 rabbitmq-server: RabbitMQ: Unsanitized vhost names allow for XSS in management UI
bugzilla·2026-05-27·CVSS 4.8
CVE-2026-44839 [MEDIUM] CVE-2026-44839 rabbitmq-server: RabbitMQ: Unsanitized vhost names allow for XSS in management UI
CVE-2026-44839 rabbitmq-server: RabbitMQ: Unsanitized vhost names allow for XSS in management UI
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.
2026-05-27
Published