Log in Start free

Vulnerability · Published Aug 26, 2026 · Assigned by GitHub_M

CVE-2026-79921amqp091-go has a Potential Memory Exhaustion/Protocol Violation via Broker-Controlled Oversized Payload

High 8.9

In plain English

A high-severity resource allocation without limits in amqp091-go from rabbitmq. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)8.9High
Exploit odds (30 days)0.5%top 53.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12golang-github-rabbitmq-amqp091-gono fix listedDEBIAN-CVE-2026-79921
Debian:13golang-github-rabbitmq-amqp091-gono fix listedDEBIAN-CVE-2026-79921
Debian:14golang-github-rabbitmq-amqp091-go1.14.0-1DEBIAN-CVE-2026-79921
Gogithub.com/rabbitmq/amqp091-go1.13.0GO-2026-6372
Gogithub.com/rabbitmq/amqp091-go1.13.0GHSA-6c5v-hqjr-5xxp
Ubuntu:24.04:LTSgolang-github-rabbitmq-amqp091-gono fix listedUBUNTU-CVE-2026-79921
Ubuntu:26.04:LTSgolang-github-rabbitmq-amqp091-gono fix listedUBUNTU-CVE-2026-79921
Ubuntu:26.10golang-github-rabbitmq-amqp091-gono fix listedUBUNTU-CVE-2026-79921

Affected products (as reported)

VendorProductVersions
rabbitmq amqp091-go < 1.13.0

Weakness: CWE-770 · Vector: 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

References