CVE-2026-77411

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/rabbitmq/amqp091-go/commit/143c1ace5fa7344cee135e5c7d22970f0de68282
https://github.com/rabbitmq/amqp091-go/pull/347
https://github.com/rabbitmq/amqp091-go/releases/tag/v1.13.0
https://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-c5pq-fr2g-9jpf

Configurations

No configuration.

History

16 Sep 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-16 15:17

Updated : 2026-09-16 19:17

NVD link : CVE-2026-77411

Mitre link : CVE-2026-77411

CVE.ORG link : CVE-2026-77411

JSON object : View

Products Affected

No product.

CWE

CWE-754

Improper Check for Unusual or Exceptional Conditions

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