Status: UPDATED
| Advisory ID: CVE-2026-77408
Key Details
| CVE | CVE-2026-77408 |
| CVSS Score / Version | 9.1 (Critical) / CVSS v4.0 |
| Updated | 2026-09-23 |
| Affected products | rabbitmq amqp091-go |
| Classified as | CWE-190 (Integer Overflow or Wraparound) |
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, the writeShortstr function in write.go casts the byte length of AMQP shortstr property values to uint8 without first rejecting values longer than 255 bytes. An application that accepts an oversized CorrelationId, ReplyTo, MessageId, Expiration, UserId, AppId, ContentType, ContentEncoding, or Type value can therefore serialize a wrapped length and only a truncated prefix, while reporting no error. The resulting silent metadata corruption can break request and reply correlation, routing, tracing, and downstream message processing. This issue is fixed in version 1.13.0. (NVD)
What to Do
Monitor rabbitmq's web page for any future patch releases.
References