CVE-2026-57220
HIGH
7.5
CVSS 3.1
Description
RabbitMQ is a messaging and streaming broker. Prior to 4.2.6, the RabbitMQ stream listener does not enforce the configured stream frame-size limit while assembling frames during authentication and before Tune negotiation, allowing an unauthenticated remote client to declare oversized frame lengths and consume broker memory in rabbit_stream_core. This issue is fixed in version 4.2.6.
Metadata
Severity & Metrics
7.5
HIGH CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products (1)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| rabbitmq | rabbitmq-server | — | >= 4.2.0, < 4.2.6 |
Weakness (CWE)
| CWE | Source | Description |
|---|---|---|
| CWE-770 | cna | CWE-770: Allocation of Resources Without Limits or Throttling |
CVSS scores (1)
| Score | Severity | Version | Source | Vector |
|---|---|---|---|---|
| 7.5 | HIGH | 3.1 | cna | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (6)
- https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-f364-87q5-j35q https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-f364-87q5-j35q
- https://github.com/rabbitmq/rabbitmq-server/pull/16171 https://github.com/rabbitmq/rabbitmq-server/pull/16171
- https://github.com/rabbitmq/rabbitmq-server/pull/16173 https://github.com/rabbitmq/rabbitmq-server/pull/16173
- https://github.com/rabbitmq/rabbitmq-server/commit/595ec28fa1621b1f2c28124e4e0466a8ad963547 https://github.com/rabbitmq/rabbitmq-server/commit/595ec28fa1621b1f2c28124e4e0466a8ad963547
- https://github.com/rabbitmq/rabbitmq-server/commit/773a49c4921e8be990262a2d609c35916825679e https://github.com/rabbitmq/rabbitmq-server/commit/773a49c4921e8be990262a2d609c35916825679e
- https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6 https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6