🛡️ CVE-2026-57218 — rabbitmq-server

🟡 CVSS 6.5 — Medium ⚠️ Exploit Public CWE-863 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

RabbitMQ is a messaging and streaming broker. Prior to 4.2.6, RabbitMQ AMQP 0-9-1 allows an existing consumer to keep receiving messages after OAuth token expiry or connection.update_secret refresh to reduced scopes because existing consumers are not canceled or reauthorized at delivery time after the channel user state changes. This issue is fixed in version 4.2.6.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

Weakness class

CVE-2026-57218 is classified as CWE-863: Incorrect Authorization. An authorisation check runs but reaches the wrong conclusion, permitting actions it should refuse.

Affected software

CVE-2026-57218 is recorded against 1 package.

  • rabbitmq-server (from 4.2.0 up to 4.2.6)

Timeline and source

Published on 10 July 2026 and last revised on 13 July 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

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Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE CWE-863
Public Exploit ⚠️ Yes
Source NVD
Published 2026-07-10
Updated 2026-08-11
Modified 2026-07-13

Affected Packages

Software From version Fixed in
rabbitmq-server 4.2.0 4.2.6

Similar Threats

Exploit Protection

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CVE-2026-57218 carries CVSS 6.5 Medium rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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