CVE-2026-13503

Description

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.

References

https://vuldb.com/vuln/374497/cti

https://vuldb.com/vuln/374497

https://vuldb.com/submit/838686

https://vuldb.com/cve/CVE-2026-13503

https://github.com/wooyun123/wooyun/issues/8

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4