PT-2026-53111 · Antlr4 · Antlr4

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CVE-2026-13500

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Published

2026-06-28

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Updated

2026-07-17

CVSS v2.0

7.5

High

VectorAV:N/AC:L/Au:N/C:P/I:P/A:P
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 injection, which allows the execution of arbitrary code on the target system.
Recommendations Update to a version newer than 4.13.2.

Exploit

Fix

Code Injection

Special Elements Injection

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Weakness Enumeration

Related Identifiers

CVE-2026-13500

Affected Products

Antlr4