| 제목 | antlr ANTLR4 4.13.2 Path Traversal tokenVocab File Read |
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| 설명 | The `tokenVocab` grammar option in ANTLR4 specifies a `.tokens` vocabulary file to import. The option value is used directly to construct a file path as `lib_directory + "/" + vocabName + ".tokens"` without any path traversal validation. An attacker-controlled grammar file (or library directory path) can read arbitrary `.tokens` files from anywhere on the filesystem, with the file content appearing verbatim in error messages. Confirmed: ANTLR4 4.13.2 reads and reports the content of `/tmp/secret_tokens.tokens` when `tokenVocab=secret_tokens` and `-lib /tmp` are specified. |
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| 원천 | ⚠️ https://github.com/wooyun123/wooyun/issues/8 |
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| 사용자 | jiazhou (UID 89028) |
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| 제출 | 2026. 05. 27. PM 12:14 (1 월 ago) |
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| 모더레이션 | 2026. 06. 27. PM 08:28 (1 month later) |
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| 상태 | 수락 |
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| VulDB 항목 | 374497 [antlr ANTLR4 까지 4.13.2 tokenVocab Grammar Option TokenVocabParser.java getImportedVocabFile 디렉토리 순회] |
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| 포인트들 | 20 |
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