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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2026.3.31)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "2026.3.31"}}], "enrichment": {"confidence": 90.0, "confidence_source": "inferred", "scores": [{"score": 90.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "OpenClaw", "source": "cna", "vendor": "OpenClaw"}, "product": "openclaw", "vendor": "openclaw"}], "analysis": {"en": {"generated_at": "2026-04-21T15:41:07.508872+00:00", "value": {"mitigation_remediation": ["Apply OpenClaw version 2026.3.31 or later to eliminate the race condition", "If an immediate update is not feasible, disable or restrict access to the remote filesystem bridge readFile functionality to prevent unauthorized reads", "Ensure that file permissions and sandbox boundaries are strictly configured so that even validated requests cannot access privileged files", "Monitor logs for anomalous readFile activity and implement rate limiting to mitigate potential brute\u2011force attempts"], "summary": {"action": "Patch immediately", "impact": "Unauthorized file read via sandbox escape"}, "threat_synthesis": {"affected_systems": "The vulnerability affects the OpenClaw product, specifically all releases prior to 2026.3.31. No additional sub\u2011version details are provided, so any deployment of OpenClaw older than 2026.3.31 is considered vulnerable.", "description_and_impact": "OpenClaw, before version 2026.3.31, has a time\u2011of\u2011check, time\u2011of\u2011use race condition in the remote filesystem bridge readFile function that lets attackers bypass sandbox restrictions. By exploiting the separate path validation and file read operations, a malicious actor can read arbitrary files, exposing confidential data and potentially enabling further privilege escalation. The weakness is classified as CWE\u2011367.", "risk_and_exploitability": "The CVSS score of 8.8 indicates a high severity level. While no EPSS score is available and the vulnerability is not currently listed in CISA KEV, the nature of the flaw allows remote exploitation through the exposed readFile interface. Attackers can craft requests that trigger the race condition to read files outside the sandbox boundary, potentially exposing sensitive information. The primary attack vector is inferred to be remote, as the function is part of the remote filesystem bridge, but a local attacker could also target the sandbox if they control the environment."}}}}, "created": "2026-04-21T00:30:22.738326+00:00", "updated": "2026-04-21T15:45:07.484598+00:00", "vendors": ["openclaw", "openclaw$PRODUCT$openclaw"]}