This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-13500 →
DEBIAN-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/OutputFil...
Original description
The description as published by the source.
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 exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
antlr4
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13
antlr4
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14
antlr4
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- advisory security-tracker.debian.org