CVE-2026-83497: Java Objectinputstream Missing Filter

Deserialization of data using ObjectInputStream without an ObjectInputFilter allowlist can allow remote code execution via gadget chains (CWE-502). Configure an ObjectInputFilter via setObjectInputFilter() before calling readObject() or readUnshared().

Provally CuratedPublic repositoryHighMedium confidenceVerifiedApache-2.0

Java

greprules fetch cve-2026-83497-java-objectinputstream-missing-filter --engine opengrep

Description

License: Apache-2.0
Source context: Public repository
Source: Provally CVE rule catalog
Validation status: Verified
Quality signals: 108 downloads
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