CVE-2026-27670

medium

Description

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.

References

https://www.vulncheck.com/advisories/openclaw-arbitrary-file-write-via-zip-extraction-parent-symlink-race-condition

https://github.com/openclaw/openclaw/security/advisories/GHSA-r54r-wmmq-mh84

https://github.com/openclaw/openclaw/commit/7dac9b05dd9d38dd3929637f26fa356fd8bdd107

Details

Source: Mitre, NVD

Published: 2026-03-19

Updated: 2026-03-19

Risk Information

CVSS v2

Base Score: 4.5

Vector: CVSS2#AV:L/AC:H/Au:S/C:N/I:C/A:P

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

Severity: Medium

CVSS v4

Base Score: 5.8

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

Severity: Medium