CVE-2026-27670 PUBLISHED

OpenClaw < 2026.3.2 - Arbitrary File Write via ZIP Extraction Parent Symlink Race Condition

Assigner: VulnCheck
Reserved: 23.02.2026 Published: 19.03.2026 Updated: 19.03.2026

OpenClaw versions prior to 2026.3.2 contain a race condition vulnerability in ZIP extraction that allows local attackers to write files outside the intended destination directory. Attackers can exploit a time-of-check-time-of-use race between path validation and file write operations by rebinding parent directory symlinks to redirect writes outside the extraction root.

Metrics

CVSS Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
CVSS Score: 5.8

Product Status

Vendor OpenClaw
Product OpenClaw
Versions Default: unaffected
  • affected from 0 to 2026.3.2 (excl.)

Credits

  • tdjackey reporter

References

Problem Types

  • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition CWE