GHSA-x82f-27x3-q89c

GHSA-x82f-27x3-q89c · OpenClaw's TOCTOU symlink race in writeFileWithinRoot could create or truncate files outside root boundaries

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### Summary A symlink-retarget TOCTOU race in `writeFileWithinRoot` could point an attacker-controlled path alias outside the configured root between resolution and write operations. ### Impact Affected versions could cause out-of-root write side effects (including file creation or truncation) before final boundary validation. ### Fix Root-scoped write flow now opens existing files without pre-truncation, creates missing files with exclusive create semantics, truncates only after post-open identity/boundary checks, and removes out-of-root artifacts when a race is detected. ### Affected and Patched Versions - Affected: `<= 2026.2.26` - Patched: `2026.3.1`

CVSS 8.7 · Élevée · Correctif disponible

Publication

2026-03-02T21:55:25Z

Mise à jour

2026-03-04T15:17:29.322934Z

Pile logicielle: node

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