CVE-2026-27670

MEDIUM

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

Title source: cna
STIX 2.1

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 (3)

Core 3
Core References
Third Party Advisory third-party-advisory
GitHub Security Advisory (GHSA-r54r-wmmq-mh84)
https://github.com/openclaw/openclaw/security/advisories/GHSA-r54r-wmmq-mh84
Third Party Advisory third-party-advisory
VulnCheck Advisory: OpenClaw < 2026.3.2 - Arbitrary File Write via ZIP Extraction Parent Symlink Race Condition
https://www.vulncheck.com/advisories/openclaw-arbitrary-file-write-via-zip-extraction-parent-symlink-race-condition

Scores

CVSS v3 5.3
EPSS 0.0001
EPSS Percentile 2.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-367
Status published
Products (2)
OpenClaw/OpenClaw < 2026.3.2
openclaw/openclaw < 2026.3.2
Published Mar 19, 2026
Tracked Since Mar 19, 2026