vulnerability

CVE-2026-77408

· published 2026-09-16 · 1 on the wire

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.

Exploited in the wild

Not on KEV

Not in CISA's Known Exploited Vulnerabilities catalogue as of the last daily pull. Absence is not proof of safety.

EPSS · 30-day forecast

—

FIRST has not scored this id yet.

CVSS · NVD

—

no vector published

Internet exposure

—

No exposure census on this CVE's dispatches.

On the wire1

17 SepGHSA-j497-x9hr-x34x: RabbitMQ amqp091-go: Silent Data Truncation and State Corruption via Shortstr Integer OverflowVULN

References

Early access

Watch this one?

Early access opens alerts first — one email when a CVE you follow lands on KEV or an adversary you follow lands on the wire. Nothing else, ever.

bot-protected