CVE catalog
CVE-2026-67412
RabbitMQ is a messaging and streaming broker. From 3.13.0 until 4.3.3, 4.2.9 , 4.1.14, 4.0.24, and 3.13.18, Federation upstream in RabbitMQ skips vhost authorization allowing cross-vhost message acces
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.26% · Oct 25, 2026
RabbitMQ is a messaging and streaming broker. From 3.13.0 until 4.3.3, 4.2.9 , 4.1.14, 4.0.24, and 3.13.18, Federation upstream in RabbitMQ skips vhost authorization allowing cross-vhost message access. what the bug lets you do. A policymaker on one vhost reads and drains messages out of another vhost it has no permission on. With the default ack-mode the source messages are consumed (deleted), not copied. Why that should not 1. Federation validates the upstream URI without any vhost-access Cross-vhost message read/drain from a per-vhost policymaker, breaking vhost tenancy This issue is fixed in versions 4.3.3, 4.2.9 , 4.1.14, 4.0.24, and 3.13.18.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | rabbitmq-server | sid | 4.3.6-1 | fixed |
| Debian | rabbitmq-server | forky | 4.3.6-1 | fixed |
| Debian | rabbitmq-server | trixie | 4.0.5-6+deb13u2 | vulnerable |
| Debian | rabbitmq-server | bookworm | 3.10.8-1.1+deb12u1 | vulnerable |
| Debian | rabbitmq-server | bookworm-security | 3.10.8-1.1+deb12u1 | vulnerable |
| Cpe | rabbitmq_server | Not reported | 4.3.3 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | rabbitmq-server | source | sid | 4.3.6-1 | not yet assigned | Not reported | [1149180] |
| Debian | rabbitmq-server | source | forky | 4.3.6-1 | not yet assigned | Not reported | [1149180] |
| Debian | rabbitmq-server | source | trixie | (unfixed) | not yet assigned | Not reported | [1149180] |
| Debian | rabbitmq-server | source | bookworm | (unfixed) | not yet assigned | Not reported | [1149180] |
| Cpe | rabbitmq_server | cpe | Not reported | 4.3.3 | Not reported | NVD-CVE-2026-67412 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [rabbitmq-server]Affected
Details (4)
3.10.8-1.1+deb12u1· all · bookwormAffected
nvd · rabbitmq-server · debian · bookworm; nvd · rabbitmq-server · debian · 12
3.10.8-1.1+deb12u1· all · bookwormAffected
nvd · rabbitmq-server · debian · bookworm; nvd · rabbitmq-server · debian · 12
3.10.8-1.1+deb12u1· all · bookworm-securityAffected
nvd · rabbitmq-server · debian · bookworm; nvd · rabbitmq-server · debian · 12
3.10.8-1.1+deb12u1· all · bookworm-securityAffected
nvd · rabbitmq-server · debian · bookworm; nvd · rabbitmq-server · debian · 12
[Debian 13 (Trixie)]
- [rabbitmq-server]Affected
Details (2)
4.0.5-6+deb13u2· all · trixieAffected
nvd · rabbitmq-server · debian · 13
4.0.5-6+deb13u2· all · trixieAffected
nvd · rabbitmq-server · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-67412]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-67412]
- [https://security-tracker.debian.org/tracker/CVE-2026-67412]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-67412.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2485.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]