Vulnerability Report

CVE-2026-27670

Title: OpenClaw ZIP extraction race condition allows arbitrary file write

Arbitrary File Access

Proof Of Concept

No public PoC currently indexed for CVE-2026-27670.

CWE Category CWE-367
Published Date Mar 19, 2026
Modified Date Mar 19, 2026
Exploit Status Not Found
Score 5.8 CVSS v4.0
Exploit Probability (EPSS)
0.08%

Vulnerability Summary

CVE-2026-27670: 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.

Impacted Vendors

O
openclaw 1

Reference Links

https://github.com/openclaw/openclaw/commit/7dac9b05dd9d38dd3929637f26fa356fd8bdd107 https://github.com/openclaw/openclaw/security/advisories/GHSA-r54r-wmmq-mh84 https://www.vulncheck.com/advisories/openclaw-arbitrary-file-write-via-zip-extraction-parent-symlink-race-condition
CVSS v4.0
Source Entity [email protected]
Severity MEDIUM
5.8
Attack Vector
LOCAL
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
N/A
RAW 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.3
Attack Vector
LOCAL
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-27670 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected Stack

No specific products linked.