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Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process. 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.
This bug was incorrectly filed against antlr3. The bug is in antlr v4; i.e., the antlr4-project package. Changing components.
FEDORA-2026-619f648cde (antlr4-project-4.13.2-18.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-619f648cde
FEDORA-2026-d9ca28a7b8 (antlr4-project-4.13.2-14.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-d9ca28a7b8
FEDORA-2026-619f648cde has been pushed to the Fedora 44 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-619f648cde` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-619f648cde See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-d9ca28a7b8 has been pushed to the Fedora 43 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-d9ca28a7b8` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-d9ca28a7b8 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-d9ca28a7b8 (antlr4-project-4.13.2-14.fc43) has been pushed to the Fedora 43 stable repository. If problem still persists, please make note of it in this bug report.
FEDORA-2026-619f648cde (antlr4-project-4.13.2-18.fc44) has been pushed to the Fedora 44 stable repository. If problem still persists, please make note of it in this bug report.