CVE-2026-28460

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Attackers can bypass security analysis by injecting $\\\\ followed by a newline and opening parenthesis inside double quotes, causing the shell to fold the line continuation into executable command substitution that circumvents approval boundaries."}, {"lang": "es", "value": "Las versiones de OpenClaw anteriores a la 2026.2.22 contienen una vulnerabilidad de omisi\u00f3n de lista de permitidos en system.run que permite a los atacantes ejecutar comandos no incluidos en la lista de permitidos dividiendo la sustituci\u00f3n de comandos mediante caracteres de continuaci\u00f3n de l\u00ednea de shell. Los atacantes pueden eludir el an\u00e1lisis de seguridad inyectando $\\\\ seguido de un salto de l\u00ednea y un par\u00e9ntesis de apertura dentro de comillas dobles, haciendo que el shell pliegue la continuaci\u00f3n de l\u00ednea en una sustituci\u00f3n de comandos ejecutable que elude los l\u00edmites de aprobaci\u00f3n."}], "id": "CVE-2026-28460", "lastModified": "2026-06-17T10:28:40.947", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.2, "source": "disclosure@vulncheck.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.0, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-28460", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-19T15:23:00.491030Z", "version": "2.0.3"}}]}, "published": "2026-03-19T02:16:02.603", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Patch"], "url": "https://github.com/openclaw/openclaw/commit/3f0b9dbb36c86e308267924c0d3d4a4e1fc4d1e9"}, {"source": "disclosure@vulncheck.com", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-9868-vxmx-w862"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://www.vulncheck.com/advisories/openclaw-allowlist-bypass-via-shell-line-continuation-command-substitution-in-system-run"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

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{"affected": [{"configurations": [{"platform": ["node.js"], "status": "affected", "versions": {"scheme": "generic", "value": "[0,2026.2.22)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "openclaw", "vendor": "openclaw"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,2026.2.22)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "OpenClaw", "source": "cna", "vendor": "OpenClaw"}, "product": "openclaw", "vendor": "openclaw"}], "analysis": {"en": {"generated_at": "2026-03-19T02:52:05.364129+00:00", "value": {"mitigation_remediation": ["Apply the vendor patch released with OpenClaw 2026.2.22 or any later version.", "Verify that the patched version is deployed on all affected hosts.", "Review and tighten the allowlist configuration for system.run so that only essential commands are permitted.", "Restrict or disable the use of system.run in contexts where it is not strictly required.", "Monitor system logs for unusual system.run activity or command\u2011line patterns that match the described injection technique."], "summary": {"action": "Immediate Patch", "impact": "Command Execution via Allowlist Bypass"}, "threat_synthesis": {"affected_systems": "All installations of the generic OpenClaw product that run on Node.js and are deployed before the release of 2026.2.22 are affected, irrespective of operating system. The vulnerability applies to every environment that hosts the OpenClaw application as indicated by the CPE string cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*.", "description_and_impact": "OpenClaw versions prior to 2026.2.22 contain an allowlist bypass that allows an attacker to inject the characters $\\ followed by a newline and an opening parenthesis inside double quotes. The shell\u2019s line\u2011continuation feature folds the injected sequences into a command substitution that is executed by system.run, thereby enabling the execution of non\u2011allowlisted commands. This is an OS Command Injection (CWE\u201178) that can run arbitrary system commands and compromise the confidentiality, integrity, or availability of the affected host.", "risk_and_exploitability": "The CVSS score of 6 indicates moderate severity, and no EPSS score is available, so the precise likelihood of exploitation cannot be quantified. The vulnerability is not listed in the CISA KEV catalog. Based on the description, the exploit can be achieved when system.run is invoked with untrusted input; the attack vector is therefore likely local or remote, depending on whether that API is exposed to end users. If an attacker gains sufficient access to trigger system.run, arbitrary command execution is possible."}}}}, "created": "2026-03-19T08:54:59.818157+00:00", "updated": "2026-03-25T11:51:33.754505+00:00", "vendors": ["openclaw", "openclaw$PRODUCT$openclaw"]}