CVE-2026-77408

UNKNOWN 0.0

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

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-190
Vendor	rabbitmq
Product	amqp091-go
Published	Sep 16, 2026
Last Updated	Sep 16, 2026

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Affected Versions

rabbitmq / amqp091-go

< 1.13.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-j497-x9hr-x34x github.com: https://github.com/rabbitmq/amqp091-go/pull/354 github.com: https://github.com/rabbitmq/amqp091-go/commit/6959423aa2784a1971e399175dfb2065dea0f3b0 github.com: https://github.com/rabbitmq/amqp091-go/releases/tag/v1.13.0