| Title | antlr ANTLR4 4.13.2 Command Injection |
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| Description | When ANTLR4 generates Go code (-Dlanguage=Go), the GoTarget class executes gofmt using ProcessBuilder("gofmt", ...) without specifying an absolute path. The binary is resolved via the PATH environment variable. An attacker who can prepend a directory to PATH (via compromised build scripts, CI environment injection, or .envrc files) can place a malicious executable named gofmt that will be executed with the privileges of the build process. This was confirmed to achieve code execution with a crafted PATH. |
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| Source | ⚠️ https://github.com/wooyun123/wooyun/issues/6 |
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| User | jiazhou (UID 89028) |
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| Submission | 05/27/2026 10:52 (1 month ago) |
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| Moderation | 06/27/2026 20:28 (1 month later) |
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| Status | Accepted |
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| VulDB entry | 374496 [antlr ANTLR4 up to 4.13.2 gofmt GoTarget.java GoTarget command injection] |
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| Points | 20 |
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