Kuberwastaken/claurst · error

Path contains backslashes

Error message

Path contains backslashes: {:?}

What it means

Path-security guard in validate_memory_path: the sync key contains a backslash (formatted value is the path). Backslashes are forbidden because on Windows they acts as a separator, enabling cross-directory escapes from the team-memory root.

Solutions

  1. Replace backslashes with '-' or another safe separator in the filename/key
  2. Drop the offending entry and re-create the file with a POSIX-safe name
Defensive patterns

Strategy: validation

When it happens

Trigger: Thrown at src-rust/crates/core/src/team_memory_sync.rs:91 when the library encounters an invalid state.

Common situations: See trigger scenarios.


AI-assisted analysis of Kuberwastaken/claurst@b0637c97ec (2026-09-10). Data as JSON: /api/errors/f8a0896ccc7fc553. Report an issue: GitHub.

Appendix: source

Thrown at src-rust/crates/core/src/team_memory_sync.rs:91

/// Reject paths that could escape the team-memory directory.
///
/// Checks performed (mirroring the TypeScript `securePath` validation):
/// - No null bytes
/// - No URL-encoded traversal sequences (`%2e`, `%2f`, case-insensitive)
/// - No backslashes
/// - Not an absolute path (Unix `/` or Windows `C:` style)
/// - No `..` components
pub fn validate_memory_path(path: &str) -> Result<()> {
    if path.contains('\0') {
        anyhow::bail!("Path contains null bytes: {:?}", path);
    }
    let lower = path.to_ascii_lowercase();
    if lower.contains("%2e") || lower.contains("%2f") {
        anyhow::bail!("Path contains URL-encoded traversal sequences: {:?}", path);
    }
    if path.contains('\\') {
        anyhow::bail!("Path contains backslashes: {:?}", path);
    }
    if path.starts_with('/') {
        anyhow::bail!("Absolute Unix paths not allowed: {:?}", path);
    }
    // Windows-style absolute path: e.g. "C:" or "c:"
    if path.len() >= 2 {
        let mut chars = path.chars();
        let first = chars.next().unwrap();
        if first.is_ascii_alphabetic() && chars.next() == Some(':') {
            anyhow::bail!("Absolute Windows paths not allowed: {:?}", path);
        }
    }
    if path.split('/').any(|component| component == "..") {
        anyhow::bail!("Path traversal not allowed: {:?}", path);
    }
    Ok(())
}

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