CVE-2026-77408 PUBLISHED

RabbitMQ amqp091-go: Silent Data Truncation and State Corruption via Shortstr Integer Overflow

Assigner: GitHub_M
Reserved: 20.08.2026 Published: 16.09.2026 Updated: 16.09.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:L
CVSS Score: 9.1

Product Status

Vendor rabbitmq
Product amqp091-go
Versions
  • Version < 1.13.0 is affected

References

Problem Types

  • CWE-190: Integer Overflow or Wraparound CWE