CVE-2026-67237

Publication date 25 September 2026

Last updated 17 October 2026

Ubuntu priority

Medium

Why this priority?

Description

RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.8 and 4.3.2, set_token_auth/2 inserted a bearer token from the Authorization header or access_token cookie into OAuth bootstrap JavaScript without escaping, allowing attacker-controlled token content to execute JavaScript in the management UI origin. The endpoint is exposed before authentication only when management.oauth_enabled is true, and exploitation through the cookie path additionally requires the attacker to plant an access_token cookie on the management host. This issue is fixed in versions 4.2.8 and 4.3.2.

Status

Package Ubuntu Release Status
rabbitmq-server 26.10 stonking
Not affected
26.04 LTS resolute
Fixed in 4.0.5-10ubuntu5.2
24.04 LTS noble
Fixed in 3.12.1-1ubuntu1.7
22.04 LTS jammy
Fixed in 3.9.27-0ubuntu0.6
20.04 LTS focal
Fixed in 3.8.3-0ubuntu0.3+esm2
18.04 LTS bionic
Fixed in 3.6.10-1ubuntu0.5+esm1
16.04 LTS xenial
Fixed in 3.5.7-1ubuntu0.16.04.4+esm3

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Severity score breakdown

CVSS version: CVSS v4.0

Base score 7.5 · High

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

Related Ubuntu Security Notices (USN)

    • USN-8933-1
    • RabbitMQ Server vulnerabilities
    • 15 October 2026

Other references

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