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Permalink CVE-2026-44839

5.6 MEDIUM

CVSS version (CVSS): 4.0
Attack Vector (AV): Network (N)
Attack Complexity (AC): High (H)
Attack Requirement (AT): None (N)
Privileges Required (PR): High (H)
User Interaction (UI): Active (A)
Vulnerable System Impact Confidentiality (VC): High (H)
Vulnerable System Impact Integrity (VI): None (N)
Vulnerable System Impact Availability (VA): None (N)
Subsequent System Impact Confidentiality (SC): None (N)
Subsequent System Impact Integrity (SI): None (N)
Subsequent System Impact Availability (SA): None (N)
Modified Attack Vector (MAV): Network (N)
Modified Attack Complexity (MAC): High (H)
Modified Attack Requirement (MAT): None (N)
Modified Privileges Required (MPR): High (H)
Modified User Interaction (MUI): Active (A)
Modified Vulnerable System Impact Confidentiality (MVC): High (H)
Modified Vulnerable System Impact Integrity (MVI): None (N)
Modified Vulnerable System Impact Availability (MVA): None (N)
Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
Modified Subsequent System Impact Integrity (MSI): Negligible (N)
Modified Subsequent System Impact Availability (MSA): Negligible (N)
Safety (S): Not Defined (X)
Automatable (AU): Not Defined (X)
Recovery (R): Not Defined (X)
Value Density (V): Not Defined (X)
Vulnerability Response Effort (RE): Not Defined (X)
Provider Urgency (U): Not Defined (X)
Confidentiality Req. (CR): Not Defined (X)
Integrity Req. (IR): Not Defined (X)
Availability Req. (AR): Not Defined (X)
Exploit Maturity (E): Not Defined (X)

created 4 days, 19 hours ago Activity log

Created suggestion 4 days, 19 hours ago

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.

References

https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-fh5r-jpm3-fjwp x_refsource_CONFIRM
https://github.com/rabbitmq/rabbitmq-server/commit/7f54319279d1ece161ae0b4cdc6f0e58a4045eb5 x_refsource_MISC

Affected products

rabbitmq-server

==>= 3.7.0, < 4.0.13
==>= 4.1.0-alpha, < 4.1.2

Matching in nixpkgs

pkgs.rabbitmq-server

Implementation of the AMQP messaging protocol

nixos-unstable 4.2.5
- nixpkgs-unstable 4.2.5
- nixos-unstable-small 4.2.5
nixos-25.11 4.2.1
- nixos-25.11-small 4.2.1
- nixpkgs-25.11-darwin 4.2.1

Package maintainers

@samueltardieu Samuel Tardieu <nixpkgs@sam.rfc1149.net>