CVE-2026-77412
RabbitMQ amqp091-go: Denial of Service via Malicious Field Length in AMQP Client
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, readField in read.go reads the length of an AMQP byte-array field with type tag x into a signed int32 and passes the value directly to make when allocating the field buffer. A malicious or compromised broker can encode a value such as 0xFFFFFFFF, which becomes -1 and causes a len out of range runtime panic. The panic escapes the network reader goroutine and terminates the client process, including during connection.start server properties or message header table parsing. This issue is fixed in version 1.13.0.
| CWE | CWE-681 |
| 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
github.com: https://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-4v58-74mf-rjx3 github.com: https://github.com/rabbitmq/amqp091-go/pull/344 github.com: https://github.com/rabbitmq/amqp091-go/commit/669b42bf7b1db76bc6d4973e3634247f680accbf github.com: https://github.com/rabbitmq/amqp091-go/releases/tag/v1.13.0