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CVE-2026-59986 is an integer-overflow vulnerability in an internal bounds check in librabbitmq, a C-based AMQP client library. On 32-bit systems, the bounds-check arithmetic can overflow, allowing an out-of-bounds read that can cause information disclosure or denial of service. The affected function name and precise triggering input are not established.
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An integer overflow in rabbitmq-c's amqp_decode_bytes bounds checking on 32-bit systems. A malicious AMQP broker can supply oversized BYTES fields to trigger an out-of-bounds read, potentially disclosing process memory or crashing the application. Updated FreeBSD packages are available; Nessus relies on self-reported version information for detection.
A critical vulnerability affecting librabbitmq, rated CVSS v3 9.8. The listed vector indicates network-based exploitation with low complexity, no privileges or user interaction required, and high confidentiality, integrity, and availability impact. The content does not describe the underlying flaw. A fix is available in version 0.11.0-1+deb12u3 or later.
A vulnerability addressed by Ubuntu Security Notice USN-8724-1 for the listed Ubuntu RabbitMQ C client packages.
An integer-overflow-related bounds-check flaw in librabbitmq that causes an out-of-bounds read on 32-bit systems, potentially enabling information disclosure or denial of service.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.