GHSA-xvx8-77m6-gwg6

ghsaUSosv

OpenClaw: Sandbox `writeFile` commit could race outside the validated path

view advisory published 2026-03-13Licence: CC-BY-4.0

## Summary In affected versions of `openclaw`, the sandbox fs-bridge `writeFile` commit step used an unanchored container path during the final move into place. An attacker racing parent-path changes inside the sandbox could redirect the committed file outside the validated sandbox path. ## Impact This is a sandbox boundary bypass. In-sandbox code could win a time-of-check-time-of-use race and cause host-approved `writeFile` operations to land outside the validated writable path within the container mount namespace. ## Affected Packages and Versions - Package: `openclaw` (npm) - Affected versions: `< 2026.3.11` - Fixed in: `2026.3.11` ## Technical Details The hardening work for anchored remove, rename, and mkdir operations did not fully cover the `writeFile` commit path. The final `mv` still used the raw target path, leaving a race window between safety revalidation and the in-container commit step. ## Fix OpenClaw now anchors the `writeFile` commit path to the canonical parent directory before the final move. The fix shipped in `openclaw@2026.3.11`. ## Workarounds Upgrade to `2026.3.11` or later.

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2026-32977US——
OpenClaw before 2026.3.11 contains a sandbox boundary bypass vulnerability in the fs-bridge writeFile commit step that uses an unanchored container path during the final move opera…
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