# CVE-2026-79921

## Summary

- **CVE ID:** CVE-2026-79921
- **Severity:** HIGH
- **CVSS Score:** 8.9 (CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H)
- **CWE:** CWE-770
- **Published:** Aug 26, 2026
- **Last Modified:** Aug 29, 2026

## Description

amqp091-go is a Go AMQP 0.9.1 client. Before version 1.13.0, a compromised or malicious AMQP broker can force the client to allocate resources for and process content body frames that exceed the negotiated frame_max limit. This can lead to unexpected memory consumption or application-layer denial of service (DoS), bypassing the protocol's built-in framing constraints. Version 1.13.0 contains a fix. No known workarounds are available.

## Affected Products

- rabbitmq — amqp091-go (< 1.13.0)

## References

- [CNA](https://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-6c5v-hqjr-5xxp)
- [CNA](https://github.com/rabbitmq/amqp091-go/pull/353)
- [CNA](https://github.com/rabbitmq/amqp091-go/commit/6beb7b51f59e46ddcf8066ad498dad32491d3be0)
- [CNA](https://github.com/rabbitmq/amqp091-go/releases/tag/v1.13.0)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.32%
- **EPSS Percentile:** 24.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._