PT-2026-25482 · Npm · Openclaw
Published
2026-03-03
·
Updated
2026-03-03
CVSS v4.0
8.7
High
| Vector | AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |
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
Fix
Link Following
Time Of Check To Time Of Use
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Related Identifiers
Affected Products
Openclaw