CVE-2026-13500

A flaw was found in ANTLR4. A remote attacker could exploit a weakness within the Grammar Action Block Handler component by executing a manipulation. This vulnerability allows for code injection, which can lead to the execution of arbitrary code on the affected system. Mitigation Mitigation for...

CVE-2026-13500

A weakness has been identified in antlr ANTLR4 up to 4.13.2. Affected is an unknown function of the file tool/src/org/antlr/v4/codegen/model/OutputFile.java of the component Grammar Action Block Handler. Executing a manipulation can lead to code injection. The attack may be launched remotely. The...

CVE-2026-13500

The CVE-2026-13500 issue affects antlr ANTLR4 up to 4.13.2, specifically the Grammar Action Block Handler’s OutputFile.java in the tool. The underlying problem is a manipulation of OutputFile.java that can cause code injection. The vulnerability is described as exploitable remotely, with a public...

EUVD-2026-39998

A weakness has been identified in antlr ANTLR4 up to 4.13.2. Affected is an unknown function of the file tool/src/org/antlr/v4/codegen/model/OutputFile.java of the component Grammar Action Block Handler. Executing a manipulation can lead to code injection. The attack may be launched remotely. The...

CVE-2026-13500

A weakness has been identified in antlr ANTLR4 up to 4.13.2. Affected is an unknown function of the file tool/src/org/antlr/v4/codegen/model/OutputFile.java of the component Grammar Action Block Handler. Executing a manipulation can lead to code injection. The attack may be launched remotely. The...

PT-2026-53111

Name of the Vulnerable Software and Affected Versions ANTLR4 versions prior to 4.13.3 Description An issue exists in the Grammar Action Block Handler component within the file tool/src/org/antlr/v4/codegen/model/OutputFile.java. A remote attacker can perform a manipulation that leads to code...