| Título | antlr ANTLR4 4.13.2 Code Injection |
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| Descrição | ANTLR4 grammar files (.g4) support embedded action blocks — @header { }, @members { }, @init { }, @after { }, and inline { } actions — that are injected verbatim and without sanitization into the generated source code. Any system that accepts .g4 files from untrusted sources and compiles/executes the generated output is fully compromised. The attack requires no special privileges; a single .g4 file causes Remote Code Execution upon class loading. |
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| Fonte | ⚠️ https://github.com/wooyun123/wooyun/issues/4 |
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| Utilizador | jiazhou (UID 89028) |
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| Submissão | 27/05/2026 10h49 (há 1 mês) |
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| Moderação | 27/06/2026 20h28 (1 month later) |
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| Estado | Aceite |
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| Entrada VulDB | 374495 [antlr ANTLR4 até 4.13.2 Grammar Action Block OutputFile.java Elevação de Privilégios] |
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| Pontos | 20 |
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