Threats Tagged 'cve-2026-21452'
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Threats Tagged 'cve-2026-21452'
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CVE-2026-21452 is a high-severity denial-of-service vulnerability in msgpack-java versions prior to 0.9.11. It arises from uncontrolled resource consumption during deserialization of maliciously crafted . msgpack files containing EXT32 objects with attacker-controlled payload lengths. The vulnerability allows remote attackers to cause JVM heap exhaustion and service crashes without requiring authentication or user interaction. This can disrupt applications that deserialize untrusted . msgpack files, such as model registries, inference services, and CI/CD pipelines. The exploit involves a small but valid . msgpack file that bypasses basic validation and triggers unbounded memory allocation. Join the discussion | CVE Database V5 | 01/02/2026, 20:47:44 UTC Added: 01/02/2026, 20:58:44 UTC |
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