CVE-2026-28483
OpenClaw: ZIP extraction race could write outside destination via parent symlink rebind
Impact
### Summary ZIP extraction in OpenClaw could be raced into writing outside the intended destination directory via parent-directory symlink rebind between validation and write. ### Affected Packages / Versions - Package: `openclaw` (npm) - Vulnerable versions: `<= 2026.3.1` - Latest published vulnerable version confirmed: `2026.3.1` (npm as of 2026-03-02) - Patched version: `2026.3.2` (released) ### Technical Details In `src/infra/archive.ts`, ZIP extraction previously validated output paths, then later opened/truncated the destination path in a separate step. A local race on parent-directory symlink state could redirect the final write outside the extraction root. The fix hardens ZIP writes by binding writes to the opened file handle identity and avoiding the pre-write truncate race path, with shared fd realpath verification in `src/infra/fs-safe.ts` and regression coverage in `src/infra/archive.test.ts`. ### Fix Commit(s) - `7dac9b05dd9d38dd3929637f26fa356fd8bdd107`
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | openclaw | <= 2026.3.1 | 2026.3.2 |