CVE-2026-62203
Received Received - Intake

Environment Variable Filtering Flaw in OpenClaw Host Exec

Publication date: 2026-07-17

Last updated on: 2026-07-17

Assigner: VulnCheck

Description
OpenClaw versions before 2026.6.6 contain an environment variable filtering vulnerability in host exec that fails to properly sanitize rustup startup variables. Attackers with lower-trust caller access or configured input paths can execute or persist actions beyond their intended authorization level.

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Meta Information

Published
2026-07-17
Last Modified
2026-07-17
Generated
2026-07-17
AI Q&A
2026-07-17
EPSS Evaluated
N/A
NVD
CVE-2026-62203
EUVD
EUVD-2026-45092

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
openclaw openclaw to 2026.6.6 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-184 The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete.

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Executive Summary

OpenClaw versions before 2026.6.6 have a flaw in the host exec component where environment variables from rustup startup are not properly filtered. This allows attackers with limited access to execute actions beyond their authorized permissions by injecting malicious variables.

Detection Guidance

Check OpenClaw version with 'openclaw --version' or inspect installed packages. Review environment variables in host exec configurations for rustup startup variables. Monitor logs for unauthorized actions or privilege escalation attempts.

Impact Analysis

An attacker could escalate privileges or perform unauthorized actions if they have access to lower-trust input paths or caller permissions. The impact depends on system configuration and whether the affected feature is enabled.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by enabling unauthorized execution or persistence of actions beyond intended authorization levels. The high impact on confidentiality, integrity, and availability (CVSS 8.8) suggests risks to sensitive data handling and system integrity, which are critical under these regulations.

Mitigation Strategies

Upgrade OpenClaw to version 2026.6.6 or later. Restrict host exec feature to trusted operators only. Disable the feature if not required. Narrow channel and tool allowlists. Review and sanitize environment variables in rustup startup paths.

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