Status: UPDATED
| Advisory ID: CVE-2026-77411
Key Details
| CVE | CVE-2026-77411 |
| CVSS Score / Version | 9.5 (Critical) / CVSS v4.0 |
| Updated | 2026-09-23 |
| Affected products | rabbitmq amqp091-go |
| Classified as | CWE-754 (Improper Check for Unusual or Exceptional Conditions) |
Affected Products, Subsystems & Sectors
| Subsystems | General OT |
| Sectors | Multiple |
What to Know
RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, readLongstr in read.go returns an empty string and a nil error when a declared AMQP longstr length exceeds 0x7FFFFFFF instead of returning ErrSyntax. The function leaves the declared field bytes unread, while readTable treats the operation as successful and continues parsing from the wrong offset. A malicious or compromised broker can provide an oversized longstr in a table field and desynchronize subsequent AMQP parsing, causing attacker-controlled trailing bytes to be interpreted as later fields or frames and disrupting connection integrity and availability. This issue is fixed in version 1.13.0. (NVD)
What to Do
Monitor rabbitmq's web page for any future patch releases.
References