OpenClaw versions prior to 2026.3.2 contain an archive extraction vulnerability in the tar.bz2 installer path that bypasses safety checks enforced on other archive formats. Attackers can craft malicious tar.bz2 skill archives to bypass special-entry blocking and extracted-size guardrails, causing local denial of service during skill installation.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Active
User action required
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Openclaw Openclaw
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
|
— |
2026.3.2
|
References 3
https://github.com/openclaw/openclaw/commit/0dbb92dd2bcf9a32379d11c0f11ed016669…
disclosure@vulncheck.com
https://github.com/openclaw/openclaw/security/advisories/GHSA-77hf-7fqf-f227
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/openclaw-tar-archive-safety-bypass-in-skil…
disclosure@vulncheck.com