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    "cveMetadata": {
        "cveId": "CVE-2026-13503",
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "state": "PUBLISHED",
        "assignerShortName": "VulDB",
        "dateReserved": "2026-06-27T18:28:07.035Z",
        "datePublished": "2026-06-28T15:15:07.671Z",
        "dateUpdated": "2026-06-29T13:11:20.305Z"
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                "shortName": "VulDB",
                "dateUpdated": "2026-06-28T15:15:07.671Z"
            },
            "title": "antlr ANTLR4 tokenVocab Grammar Option TokenVocabParser.java getImportedVocabFile path traversal",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "cweId": "CWE-22",
                            "lang": "en",
                            "description": "Path Traversal"
                        }
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            "affected": [
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                    "vendor": "antlr",
                    "product": "ANTLR4",
                    "versions": [
                        {
                            "version": "4.13.0",
                            "status": "affected"
                        },
                        {
                            "version": "4.13.1",
                            "status": "affected"
                        },
                        {
                            "version": "4.13.2",
                            "status": "affected"
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                    "cpes": [
                        "cpe:2.3:a:antlr:antlr4:*:*:*:*:*:*:*:*"
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                    "modules": [
                        "tokenVocab Grammar Option Handler"
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A vulnerability was detected in antlr ANTLR4 up to 4.13.2. Affected by this issue is the function getImportedVocabFile of the file tool/src/org/antlr/v4/parse/TokenVocabParser.java of the component tokenVocab Grammar Option Handler. The manipulation results in path traversal. The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way."
                }
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                        "baseSeverity": "MEDIUM"
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                {
                    "time": "2026-06-27T00:00:00.000Z",
                    "lang": "en",
                    "value": "Advisory disclosed"
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                {
                    "time": "2026-06-27T02:00:00.000Z",
                    "lang": "en",
                    "value": "VulDB entry created"
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                    "time": "2026-06-27T20:33:18.000Z",
                    "lang": "en",
                    "value": "VulDB entry last update"
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            "credits": [
                {
                    "lang": "en",
                    "value": "jiazhou (VulDB User)",
                    "type": "reporter"
                },
                {
                    "lang": "en",
                    "value": "VulDB CNA Team",
                    "type": "coordinator"
                }
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            "references": [
                {
                    "url": "https://vuldb.com/vuln/374497",
                    "name": "VDB-374497 | antlr ANTLR4 tokenVocab Grammar Option TokenVocabParser.java getImportedVocabFile path traversal",
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                },
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                    "url": "https://vuldb.com/vuln/374497/cti",
                    "name": "VDB-374497 | CTI Indicators (IOB, IOC, TTP, IOA)",
                    "tags": [
                        "signature",
                        "permissions-required"
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                },
                {
                    "url": "https://vuldb.com/cve/CVE-2026-13503",
                    "name": "CVE-2026-13503 | CVE Analysis and Report",
                    "tags": [
                        "third-party-advisory"
                    ]
                },
                {
                    "url": "https://vuldb.com/submit/838686",
                    "name": "Submit #838686 | antlr ANTLR4 4.13.2 Path Traversal tokenVocab File Read",
                    "tags": [
                        "third-party-advisory"
                    ]
                },
                {
                    "url": "https://github.com/wooyun123/wooyun/issues/8",
                    "tags": [
                        "exploit",
                        "issue-tracking"
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                }
            ]
        },
        "adp": [
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                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-29T13:11:13.336960Z",
                                "id": "CVE-2026-13503",
                                "options": [
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                                        "Exploitation": "poc"
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                                        "Automatable": "yes"
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                                        "Technical Impact": "partial"
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                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                "title": "CISA ADP Vulnrichment",
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