CVE-2026-31990

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Los atacantes pueden explotar esto colocando enlaces simb\u00f3licos en el directorio media/inbound para sobrescribir archivos arbitrarios en el sistema anfitri\u00f3n fuera de los l\u00edmites de la sandbox."}], "id": "CVE-2026-31990", "lastModified": "2026-06-17T10:34:53.387", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 4.2, "source": "disclosure@vulncheck.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "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:L/AC:L/AT:N/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-2026-31990", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-19T17:02:57.284280Z", "version": "2.0.3"}}]}, "published": "2026-03-19T02:16:03.647", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Patch"], "url": "https://github.com/openclaw/openclaw/commit/17ede52a4be3034f6ec4b883ac6b81ad0101558a"}, {"source": "disclosure@vulncheck.com", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-cfvj-7rx7-fc7c"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://www.vulncheck.com/advisories/openclaw-symlink-traversal-in-stagesandboxmedia-destination"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-59"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

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{"affected": [{"configurations": [{"platform": ["node.js"], "status": "affected", "versions": {"scheme": "semver", "value": "[0,2026.3.2)"}}], "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": "2026-03-19T02:23:51.016956+00:00", "value": {"mitigation_remediation": ["Upgrade OpenClaw to version 2026.3.2 or later. \n Carefully verify that the upgrade is applied and the stageSandboxMedia function behaves correctly.", "If an upgrade cannot be performed immediately, remove or block any symbolic links in the media/inbound directory and prevent write access to that directory until a patch is applied. \n This limits the ability of an attacker to overwrite files outside the sandbox.", "Monitor the vendor advisory and security channels for patch releases, and apply them as soon as they become available. \n Keep the application and its dependencies up to date to prevent exploitation of similar flaws."], "summary": {"action": "Patch ASAP", "impact": "Arbitrary File Write"}, "threat_synthesis": {"affected_systems": "Affected product: OpenClaw (OpenClaw:OpenClaw). Vulnerable versions are all releases prior to 2026.3.2. No additional version details were provided.", "description_and_impact": "The vulnerability is a symlink traversal flaw in the stageSandboxMedia function, which allows write operations to follow symbolic links outside the intended sandbox. This results in arbitrary file write, enabling an attacker to overwrite critical files on the host system. The weakness aligns with CWE-59, representing a path\u00a0traversal/dir traversal flaw that can compromise integrity and availability of system files.", "risk_and_exploitability": "The CVSS score of 6.9 indicates a medium to high severity. EPSS is not available, and the vulnerability is not listed in the CISA KEV catalog. Exploitation requires access to the media/inbound directory, likely through local filesystem privileges or by uploading crafted symlinks if the application permits. The likely attack vector is local, though remote exploitation could be possible if the web interface allows user uploads that end up in that directory."}}}}, "created": "2026-03-19T08:54:55.075773+00:00", "updated": "2026-03-25T14:10:38.349293+00:00", "vendors": ["openclaw", "openclaw$PRODUCT$openclaw"]}