{"record":{"id":"b8b1231a14f697fc","repo":"Hmbown/CodeWhale","slug":"export-output-must-be-outside-the-session-store","errorCode":null,"errorMessage":"export output must be outside the session store","messagePattern":"export output must be outside the session store","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"crates/tui/src/session_export.rs","lineNumber":172,"sourceCode":"            io::ErrorKind::InvalidInput,\n            format!(\n                \"xz compression level {} is out of range 0-9\",\n                options.compression_level\n            ),\n        ));\n    }\n    let session_json = session_json(session)?;\n    let container_json = container_json(session)?;\n    let parent = output\n        .parent()\n        .filter(|parent| !parent.as_os_str().is_empty())\n        .map_or_else(|| PathBuf::from(\".\"), Path::to_path_buf);\n    fs::create_dir_all(&parent)?;\n    let sessions_dir = sessions_dir.map(Path::canonicalize).transpose()?;\n    if let Some(root) = &sessions_dir\n        && parent.canonicalize()?.starts_with(root)\n    {\n        return Err(io::Error::new(\n            io::ErrorKind::InvalidInput,\n            \"export output must be outside the session store\",\n        ));\n    }\n    let artifact_files = match (options.include_artifacts, sessions_dir.as_deref()) {\n        (true, Some(root)) => match session_artifacts_dir(root, &session.metadata.id)? {\n            Some(dir) => collect_artifact_files(root, &dir)?,\n            None => Vec::new(),\n        },\n        _ => Vec::new(),\n    };\n    let mut temp = tempfile::Builder::new()\n        .prefix(\".codewhale-session-export-\")\n        .tempfile_in(&parent)?;\n\n    let mut summary = SessionArchiveSummary {\n        output: output.to_path_buf(),\n        session_id: session.metadata.id.clone(),","sourceCodeStart":154,"sourceCodeEnd":190,"githubUrl":"https://github.com/Hmbown/CodeWhale/blob/73e0f67d83c59909b571efdfc88c4bc28c309cb1/crates/tui/src/session_export.rs#L154-L190","documentation":"Before writing the archive, the function canonicalizes the output's parent directory and the sessions store root, and refuses output paths that resolve inside the session store. Writing a tarball into the store could be re-ingested as session data or grow on every export.","triggerScenarios":"Calling write_session_archive (crates/tui/src/session_export.rs:172) with an output path whose canonicalized parent is equal to or nested under the canonicalized sessions_dir (including via symlink).","commonSituations":"Exporting with output defaulting to the current directory while cwd is the sessions directory; symlinked output directory resolving into the store; scripts writing backups next to session data.","solutions":["Choose an output path outside the sessions directory (e.g. ~/exports/session.tar.xz).","If exporting from within the store dir, pass an explicit --output elsewhere.","Resolve symlinks: point the output at a real directory that is not under the store root."],"exampleFix":"// before\ncd ~/.codewhale/sessions && codewhale sessions export --output ./backup.tar.xz\n// after\ncodewhale sessions export --output ~/backups/session.tar.xz","handlingStrategy":"validation","validationCode":"let root = sessions_dir.canonicalize()?;\nlet parent = output.parent().unwrap_or(Path::new(\".\")).canonicalize()?;\nassert!(!parent.starts_with(&root), \"output must be outside the session store\");","typeGuard":null,"tryCatchPattern":"match write_session_archive(&s, Some(&store), &out, o) { Err(e) if e.to_string().contains(\"outside the session store\") => eprintln!(\"move --output outside {}\", store.display()), r => r?, }","preventionTips":["Default export output to a directory outside the sessions store","Resolve symlinks before choosing the output directory","Reject store-resolving output paths in CLI arg parsing with a clear message"],"tags":["session","export","path-safety"],"backgroundTag":"path-traversal-blocked","analyzedSha":"73e0f67d83c59909b571efdfc88c4bc28c309cb1","analyzedAt":"2026-09-22T01:30:00.501Z","contentChangedAt":"2026-09-22T01:30:00.501Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}