Description
A security vulnerability has been detected in antlr ANTLR4 up to 4.13.2. Affected by this vulnerability is the function GoTarget of the file tool/src/org/antlr/v4/codegen/target/GoTarget.java of the component gofmt. The manipulation leads to command injection. The attack can only be performed from a local environment. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| antlr | ANTLR4 | 4.13.0, 4.13.1, 4.13.2 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | antlr4 | No fix yet | — |
| Debian 13 | antlr4 | No fix yet | — |
| Debian 12 | antlr4 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | antlr4 | No fix yet | — |
| Ubuntu 26.04 LTS | antlr4 | No fix yet | — |
| Ubuntu 25.10 | antlr4 | No fix yet | — |
| Ubuntu 24.04 LTS | antlr4 | No fix yet | — |
| Ubuntu 22.04 LTS | antlr4 | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | antlr4 | No fix yet | — |
| Ubuntu 18.04 LTS | antlr4 | No fix yet | — |
| Ubuntu 16.04 LTS | antlr4 | No fix yet | — |
References
- VDB-374496 | antlr ANTLR4 gofmt GoTarget.java GoTarget command injection vdb-entry technical-description
- VDB-374496 | CTI Indicators (IOB, IOC, TTP, IOA) signature permissions-required
- CVE-2026-13501 | CVE Analysis and Report third-party-advisory
- Submit #838569 | antlr ANTLR4 4.13.2 Command Injection third-party-advisory
- https://github.com/wooyun123/wooyun/issues/6 exploit issue-tracking