Answer in brief
CVE-2026-79921 records a High severity (CVSS 8.9) vulnerability in amqp091-go has a Potential Memory Exhaustion/Protocol Violation via Broker-Controlled Oversized Payload. The current sources do not mark it as known exploited. The current feed maps rabbitmq/amqp091-go (generic), github.com/rabbitmq/amqp091-go (go), github.com/rabbitmq/amqp091-go (go). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps rabbitmq/amqp091-go (generic), github.com/rabbitmq/amqp091-go (go), github.com/rabbitmq/amqp091-go (go). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| rabbitmq/amqp091-gogeneric | < 1.13.0 | Not reported |
| github.com/rabbitmq/amqp091-gogo | <1.13.0 | 1.13.0 |
| github.com/rabbitmq/amqp091-gogo | >=0 <1.13.0 | 1.13.0 |
Published upstream
Aug 26, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 26, 2026
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.
Quoted source text, attributed separately from HOL analysis.