CVE-2026-100542

OpenClaw (npm package 'openclaw') versions >= 2026.5.28 and < 2026.8.1 mishandle archive listings in the tar.bz2 skill installer: bounded command-output suffixes were treated as complete listings of the archive. A crafted .tar.bz2/.tbz2 skill archive can push prohibited entries out of both retained listings so that entry-count and size checks pass, and the archive is then extracted in full. If an operator approves installation of such a malicious or compromised skill archive, over-limit files or entry counts are persisted in the skill tools directory, consuming disk space or inodes. The issue bypasses OpenClaw's extraction budgets but does not by itself execute archive contents. Fixed in 2026.8.1.

CVSS v3 3.1 LOW

3.1^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.6 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/openclaw/openclaw/security/advisories/GHSA-6xpv-wwr5-265h
https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-extraction-limit-bypass-via-tar-bz2

Configurations

No configuration.

History

26 Sep 2026, 03:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-26 03:17

Updated : 2026-09-28 18:17

NVD link : CVE-2026-100542

Mitre link : CVE-2026-100542

CVE.ORG link : CVE-2026-100542

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

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