CVE-2026-4040: OpenClaw safeBins file-existence oracle information disclosure

February 19, 2026 (updated March 12, 2026)

An information disclosure vulnerability in OpenClaw’s tools.exec.safeBins approval flow allowed a file-existence oracle.

When safe-bin validation examined candidate file paths, command allow/deny behavior could differ based on whether a path already existed on the host filesystem. An attacker could probe for file presence by comparing outcomes for existing vs non-existing filenames.

References

github.com/advisories/GHSA-6c9j-x93c-rw6j
github.com/openclaw/openclaw
github.com/openclaw/openclaw/commit/bafdbb6f112409a65decd3d4e7350fbd637c7754
github.com/openclaw/openclaw/security/advisories/GHSA-6c9j-x93c-rw6j
nvd.nist.gov/vuln/detail/CVE-2026-4040

Code Behaviors & Features

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