| Título | antlr ANTLR4 4.13.2 Code Injection |
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| Descripción | 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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| Fuente | ⚠️ https://github.com/wooyun123/wooyun/issues/4 |
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| Usuario | jiazhou (UID 89028) |
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| Sumisión | 2026-05-27 10:49 (hace 1 mes) |
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| Moderación | 2026-06-27 20:28 (1 month later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 374495 [antlr ANTLR4 hasta 4.13.2 Grammar Action Block OutputFile.java escalada de privilegios] |
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| Puntos | 20 |
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