CVE-2026-41346

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Remote attackers can submit pairing requests from other accounts to block new pairing challenges on unaffected accounts, causing denial of service."}, {"lang": "es", "value": "OpenClaw 2026.2.26 anterior a 2026.3.31 impone l\u00edmites de solicitudes de emparejamiento pendientes por archivo de canal en lugar de por cuenta, permitiendo a los atacantes agotar la ventana compartida de solicitudes pendientes. Atacantes remotos pueden enviar solicitudes de emparejamiento desde otras cuentas para bloquear nuevos desaf\u00edos de emparejamiento en cuentas no afectadas, causando denegaci\u00f3n de servicio."}], "id": "CVE-2026-41346", "lastModified": "2026-11-11T23:10:00.263", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "disclosure@vulncheck.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.3, "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": "NONE", "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:N/UI:N/VC:N/VI:N/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": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-41346", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-04-24T16:38:52.186395Z", "version": "2.0.3"}}]}, "published": "2026-04-23T22:16:41.313", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Patch"], "url": "https://github.com/openclaw/openclaw/commit/9bc1f896c8cd325dd4761681e9bdb8c425f69785"}, {"source": "disclosure@vulncheck.com", "tags": ["Vendor Advisory"], "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-wwfp-w96m-c6x8"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-improper-pending-pairing-request-cap-enforcement"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-799"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

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{"affected": [{"configurations": [{"platform": ["node.js"], "status": "affected", "versions": {"scheme": "semver", "value": "[2026.2.26,2026.3.31)"}}, {"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": "2026-04-28T07:18:10.408749+00:00", "value": {"mitigation_remediation": ["Upgrade OpenClaw to version 2026.3.31 or later to disable the faulty per\u2011channel cap enforcement.", "If upgrading is not immediately possible, configure the application to lower the per\u2011channel pending pairing request limit or implement per\u2011account caps where supported.", "Actively monitor system logs for unusually high numbers of pairing requests and block or rate\u2011limit IP addresses that exhibit suspicious activity.", "Apply any available configuration settings that enforce correct accounting of pending requests per account, ensuring the logic aligns with intended policy."], "summary": {"action": "Immediate Patch", "impact": "Denial of Service"}, "threat_synthesis": {"affected_systems": "The issue impacts the OpenClaw product named OpenClaw, affecting all installations running OpenClaw versions 2026.2.26 up to, but not including, 2026.3.31. No other vendors or product variants are mentioned as affected.", "description_and_impact": "A flaw in OpenClaw versions prior to 2026.3.31 causes pending pairing\u2011request caps to be enforced per channel file instead of per account. This allows an attacker to submit a large number of pairing requests from different accounts, exhausting the shared pending window and preventing new pairing challenges from being generated for other accounts. The attack elevates to a denial of service because affected accounts can no longer initiate new pairing processes, disrupting legitimate users and services. The weakness is a type of logic error (CWE\u2011799) where a policy is applied at an incorrect granularity.", "risk_and_exploitability": "The CVSS score of 6.3 places this vulnerability in the moderate severity category. The EPSS score indicates a very low but non\u2011zero exploitation probability, and it is not listed in the CISA KEV catalog. Attackers can exploit this by sending pairing requests remotely from other accounts; the easiest vector is through network access to the OpenClaw service. If the attacker can maintain enough concurrent requests to fill the per\u2011channel quota, all other accounts are effectively locked out of pairing, leading to a denial of service for those users."}}}}, "created": "2026-04-27T22:15:14.793094+00:00", "updated": "2026-04-28T07:30:26.316333+00:00", "vendors": ["openclaw", "openclaw$PRODUCT$openclaw"]}