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CVE-2019-20330 is an insecure deserialization vulnerability in FasterXML jackson-databind 2.x before 2.9.10.2. The library did not block certain net.sf.ehcache classes during polymorphic deserialization, allowing attacker-controlled serialized data to invoke an Ehcache gadget chain. When an application deserializes untrusted input using unsafe polymorphic type handling, the issue can permit arbitrary code execution.
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No valid public exploits. Mallory filtered out 2 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
15 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability referenced by the CIQ crlsa-2020_1644 security update; no technical details are provided in the content.
Jackson Databind incomplete blocking flaw for net.sf.ehcache classes, enabling unsafe deserialization scenarios.
Jackson Databind lacks certain net.sf.ehcache deserialization blocking.
Jackson Databind deserialization issue caused by insufficient blocking of net.sf.ehcache types.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.