CVE-2026-41336

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{"affected": [{"configurations": [{"platform": ["node.js"], "status": "affected", "versions": {"scheme": "semver", "value": "[0,2026.3.31)"}}, {"platform": ["node.js"], "status": "unaffected", "versions": {"scheme": "semver", "value": "2026.3.31"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "OpenClaw", "source": "cna", "vendor": "OpenClaw"}, "product": "openclaw", "vendor": "openclaw"}], "analysis": {"en": {"generated_at": "2026-04-28T14:40:36.658203+00:00", "value": {"mitigation_remediation": ["Upgrade OpenClaw to version 2026.3.31 or later, which removes the ability to override the bundled hooks directory via .env files.", "If upgrading immediately is not possible, configure the application to ignore or remove the OPENCLAW_BUNDLED_HOOKS_DIR environment variable when loading hooks, effectively disabling the override.", "Restrict the creation or modification of workspace .env files to trusted administrators; consider implementing a signing or validation mechanism to prevent unauthorized changes.", "Apply file permission controls or monitoring to detect unexpected .env files or changes to the hooks directory, and restrict write access to the bundled hooks directory."], "summary": {"action": "Apply Patch", "impact": "Arbitrary Code Execution via Environment Variable Override"}, "threat_synthesis": {"affected_systems": "Any installation of OpenClaw older than version 2026.3.31 is impacted; all other versions are considered safe.", "description_and_impact": "OpenClaw before 2026.3.31 is vulnerable because it allows the OPENCLAW_BUNDLED_HOOKS_DIR environment variable to be overridden by an attacker supplied workspace .env file. The override causes the application to load hook code from directories specified by the attacker rather than the trusted default hooks. This permits an attacker to inject and execute arbitrary code on the host running the workspace. The vulnerability originates from inadequate access control over environment configuration, matching CWE-829.", "risk_and_exploitability": "The CVSS score of 8.5 indicates a high severity flaw, while the EPSS score of less than 1% shows that, as of now, exploitation is unlikely to be widespread. Nonetheless, because an attacker only needs to supply a crafted .env file in a workspace, the server could load malicious hook code and execute it without further interaction. The vulnerability is not listed in the CISA KEV catalog, so there is no evidence of existing widespread exploits, yet the potential for uncontrolled code execution remains significant, especially in environments where workspaces are created or managed by trusted users only."}}}}, "created": "2026-04-28T03:30:19.679779+00:00", "updated": "2026-04-28T14:45:16.196173+00:00", "vendors": ["openclaw", "openclaw$PRODUCT$openclaw"]}