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THREAT OPS › Threat News › [GHSA] GHSA-xwwf-m8fg-p9q2 (high) — RabbitMQ amqp091-go: Denial of Service via Sub-Spec Frame Size Negotiation

[GHSA] GHSA-xwwf-m8fg-p9q2 (high) — RabbitMQ amqp091-go: Denial of Service via Sub-Spec Frame Size Negotiation

medgithub_advisoriesPublished 2026-09-17

GHSA-xwwf-m8fg-p9q2 Severity: high CVE: CVE-2026-77403

RabbitMQ amqp091-go: Denial of Service via Sub-Spec Frame Size Negotiation

## Summary A Denial of Service (DoS) vulnerability exists in the AMQP client's connection negotiation logic. The AMQP specification explicitly mandates a strict minimum frame size of 4096 bytes to prevent pathological packet fragmentation. While the library defines a

Indicators of compromise

CVE-2026-77403cve

Original source: https://github.com/advisories/GHSA-xwwf-m8fg-p9q2