# FEDORA-2026-548235EA3B: rabbitmq-server security update

FEDORA-2026-548235EA3B, released July 30, 2026, fixes 6 CVEs in rabbitmq-server (version 4.0.9-5.fc43). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/fedora-2026-548235ea3b
- Platform: Linux
- Released: Jul 30, 2026
- Priority: High (Closes CVE-2026-57219, high severity)
- CVEs: 6, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://bodhi.fedoraproject.org/updates/FEDORA-2026-548235ea3b

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [rabbitmq-server](https://patchblox.com/security/data/product/linux/rabbitmq-server.md) | Fedora 43 | 4.0.9-5.fc43 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-57219](https://patchblox.com/security/data/cve/CVE-2026-57219.md) | High | RabbitMQ: Unauthenticated disclosure of OAuth client credentials via an HTTP API endpoint with certain less common OAuth 2 configurations | 7.5 | 0.0284 |  |
| [CVE-2026-57212](https://patchblox.com/security/data/cve/CVE-2026-57212.md) | High | rabbitmq-server: RabbitMQ is a messaging and streaming broker | 7.7 | 0.0043 |  |
| [CVE-2026-57215](https://patchblox.com/security/data/cve/CVE-2026-57215.md) | High | RabbitMQ: Direct-reply-to binding persistence can lead to unauthorized reply-channel injection and persistent phantom | 8.8 | 0.0038 |  |
| [CVE-2026-57221](https://patchblox.com/security/data/cve/CVE-2026-57221.md) | Routine | rabbitmq-server: RabbitMQ is a messaging and streaming broker | 5.0 | 0.0041 |  |
| [CVE-2026-57213](https://patchblox.com/security/data/cve/CVE-2026-57213.md) | Routine | RabbitMQ: Stored XSS federation management plugin via unsanitized consumer_tag rendering | 4.8 | 0.0025 |  |
| [CVE-2026-44839](https://patchblox.com/security/data/cve/CVE-2026-44839.md) | Routine | RabbitMQ: Unsanitized vhost names allow for XSS in management UI | 4.8 | 0.0018 |  |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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