CVE-2026-100533: OpenClaw before 2026.8.1 Path Traversal via Unicode Fallback

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-26 · updated 2026-09-29
Weakness: CWE-22

Description

OpenClaw versions before 2026.8.1 contain a path traversal vulnerability in the tools.fs.workspaceOnly feature where Unicode filename fallback can normalize validated parent directory components. Admitted requesters can exploit canonically equivalent sibling directories to read files outside the configured workspace boundary.

Affected products

OpenClaw: before 2026.8.1 — fixed in 2026.8.1

How to fix

Upgrade to a fixed version: OpenClaw 2026.8.1. Check the vendor advisory for mitigations.

References

https://github.com/openclaw/openclaw/security/advisories/GHSA-5rx7-34fw-64qg
https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-path-traversal-via-unicode-fallback

Get alerted when CVE-2026-100533 or the next vulnerability affects your stack