medium5.3
CVE-2026-13503
A vulnerability was detected in antlr ANTLR4 up to 4.13.2.
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| Antlr ANTLR4 | before 4.13.2. |
Versions were read from the advisory text. No structured product data has been published for this record yet.