Understanding and Defending Against CVE-2026-62202: Privilege Escalation in OpenClaw

Overview

CVE-2026-62202 is a privilege escalation vulnerability in OpenClaw, a software that manages isolated cron jobs. The vulnerability affects OpenClaw versions 2026.6.1 before 2026.6.9. It allows attackers to execute or persist actions beyond their intended authorization by leveraging misconfigured input paths in the affected cron feature. This vulnerability has a CVSS score of 8.8, indicating a high severity.

Understanding the Vulnerability / Threat

Root Cause Analysis

The root cause of CVE-2026-62202 is a design issue in the isolated cron jobs feature of OpenClaw. Specifically, the vulnerability arises from misconfigured input paths that allow lower-trust callers to regain denied execution tools. This is classified under CWE-863, which involves 'Permissions, Privileges, and Access Controls' issues.

Attack Surface & Vector

The attack surface for CVE-2026-62202 is the network, as indicated by the CVSS vector 'AV:N'. The attack complexity is low ('AC:L'), and the privileges required are low ('PR:L'). The vulnerability can be exploited without user interaction ('UI:N'). The scope of the vulnerability is unchanged ('S:U'), and it impacts confidentiality, integrity, and availability ('C:H/I:H/A:H').

Exploitation Mechanics — Scenario Walkthrough

Scenario: Exploiting Misconfigured Input Paths in OpenClaw Cron Jobs 1. Initial Position: An attacker with low privileges has access to the network and can interact with the OpenClaw instance. 2. Triggering the Flaw: The attacker crafts a malicious input to the cron job feature, exploiting the misconfigured input paths. This input is designed to bypass authorization checks and execute a denied tool. 3. What Breaks: The security boundary fails because the input path validation does not correctly restrict the execution of tools based on the caller's trust level. As a result, the attacker can execute actions that should be restricted. 4. Attacker's Prize: The attacker gains the ability to execute or persist actions beyond their intended authorization. This could involve executing arbitrary commands, escalating privileges, or persisting malicious activity.

Real-World Impact

The real-world impact of CVE-2026-62202 can be significant. An attacker could exploit this vulnerability to escalate privileges, potentially leading to unauthorized data access, modification, or deletion. They could also use the vulnerability as a stepping stone for further attacks within the network.

Detection & Defense

Immediate Mitigations

- Upgrade OpenClaw to version 2026.6.9 or later. - Review and correct misconfigured input paths in the isolated cron jobs feature. - Implement additional access controls and monitoring to detect and prevent exploitation attempts.

Detection Strategies

- Monitor cron job executions and input paths for anomalies. - Implement SIEM rules to detect unusual privilege escalation attempts. - Regularly review system logs for signs of exploitation.

Long-Term Hardening

- Regularly update and patch OpenClaw and related systems. - Implement a robust configuration management process for cron jobs and input paths. - Conduct periodic security audits and vulnerability assessments.

Key Takeaways

- CVE-2026-62202 is a high-severity privilege escalation vulnerability in OpenClaw. - The vulnerability is caused by misconfigured input paths in isolated cron jobs. - Exploitation allows attackers to execute actions beyond their intended authorization. - Immediate mitigation involves upgrading to version 2026.6.9 or later and reviewing input paths. - Detection and long-term hardening require regular monitoring, updates, and security audits.

Sources

- National Vulnerability Database (NVD) - CVE-2026-62202 - OpenClaw Security Advisory - GHSA-mm9g-83wh-mhwj - Vulncheck Advisory - OpenClaw Privilege Escalation via Cron