CVE-2026-79921: high-severity vulnerability in rabbitmq amqp091-go
amqp091-go has a Potential Memory Exhaustion/Protocol Violation via Broker-Controlled Oversized Payload
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.9epss 0.5%
amqp091-go is a Go AMQP 0.9.1 client. Before version 1.13.0, a compromised or malicious AMQP broker can force the client to allocate resources for and process content body frames that exceed the negotiated frame_max limit. This can lead to unexpected memory consumption or application-layer denial of service (DoS), bypassing the protocol's built-in framing constraints. Version 1.13.0 contains a fix. No known workarounds are available.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
Affected products
rabbitmq · amqp091-goRelated CVEs — rabbitmq amqp091-go
In the same product, most dangerous first.
CVE-2026-77409HIGHRabbitMQ amqp091-go: Denial of Service via Synchronous Event Channel BlockingEPSS 0.5%CVE-2026-77411CRITICALRabbitMQ amqp091-go: Protocol Desynchronization and Frame Injection via Integer Overflow in readLongstrEPSS 0.5%CVE-2026-77412HIGHRabbitMQ amqp091-go: Denial of Service via Malicious Field Length in AMQP ClientEPSS 0.5%CVE-2026-77410HIGHRabbitMQ amqp091-go: Resource Exhaustion (OOM) via Unbounded Body Buffer AllocationEPSS 0.5%CVE-2026-77406HIGHRabbitMQ amqp091-go: Consumer Message Flooding via Signed-to-Unsigned Integer Casting in Qos ConfigurationEPSS 0.5%CVE-2026-77403HIGHRabbitMQ amqp091-go: Denial of Service via Sub-Spec Frame Size NegotiationEPSS 0.5%