{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-41393", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-04-20T14:13:45.349Z", "datePublished": "2026-04-28T18:09:53.474Z", "dateUpdated": "2026-04-28T18:09:53.474Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-04-28T18:09:53.474Z"}, "title": "OpenClaw < 2026.3.31 - Arbitrary DNS Authority Acceptance and Credential Exfiltration via Wide-Area Discovery", "descriptions": [{"lang": "en", "value": "OpenClaw before 2026.3.31 contains a wide-area discovery vulnerability allowing arbitrary tailnet peers to be accepted as DNS authorities. Attackers with same-tailnet position and CA-trusted endpoint access can exfiltrate operator credentials through DNS steering manipulation."}], "tags": ["x_open-source"], "datePublic": "2026-03-31T00:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-346", "description": "CWE-346: Origin Validation Error", "type": "CWE"}]}], "affected": [{"vendor": "OpenClaw", "product": "OpenClaw", "defaultStatus": "unaffected", "packageURL": "pkg:npm/openclaw", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "2026.3.31"}, {"version": "2026.3.31", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "2026.3.31"}]}]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "ADJACENT", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 5.9, "vectorString": "CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"attackVector": "ADJACENT_NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE", "version": "3.1", "baseSeverity": "MEDIUM", "baseScore": 4.8, "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N"}}], "references": [{"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-q9w8-cf67-r238", "name": "GitHub Security Advisory (GHSA-q9w8-cf67-r238)", "tags": ["vendor-advisory"]}, {"url": "https://github.com/openclaw/openclaw/commit/a23c33a681f8c1b22dc793995acc4c5c4b568346", "name": "Patch Commit", "tags": ["patch"]}, {"name": "VulnCheck Advisory: OpenClaw < 2026.3.31 - Arbitrary DNS Authority Acceptance and Credential Exfiltration via Wide-Area Discovery", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/openclaw-arbitrary-dns-authority-acceptance-and-credential-exfiltration-via-wide-area-discovery"}], "credits": [{"lang": "en", "value": "Nathan (@nexrin)", "type": "reporter"}, {"lang": "en", "value": "KeenSecurityLab", "type": "finder"}, {"lang": "en", "value": "qclawer", "type": "finder"}], "x_generator": {"engine": "vulncheck"}}}}

{}

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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"}]}, "product": "openclaw", "vendor": "openclaw"}], "analysis": {"en": {"generated_at": "2026-04-28T23:03:33.153477+00:00", "value": {"mitigation_remediation": ["Upgrade OpenClaw to version 2026.3.31 or later", "Reconfigure tailnet settings to restrict DNS authority assignments to only pre\u2011approved peers", "Ensure all CA\u2011trusted endpoints are verified and maintain strict access control for DNS steering components"], "summary": {"action": "Patch", "impact": "Credential Exfiltration via DNS Authority Acceptance"}, "threat_synthesis": {"affected_systems": "OpenClaw OpenClaw running on node.js is affected when the version is older than 2026.3.31. Systems using the 2026.3.30 release or earlier are vulnerable. No other products or versions are currently listed as impacted.", "description_and_impact": "The vulnerability permits an attacker who shares the same tailnet with a target system to add an arbitrary peer as a DNS authority. Once accepted, the compromised peer can manipulate DNS steering to redirect traffic, thereby enabling the exfiltration of operator credentials. This weakness allows credential theft while the adversary remains within the trusted network boundary, representing a medium risk of sensitive data exposure.", "risk_and_exploitability": "The CVSS base score of 5.9 indicates moderate severity. Because the EPSS score is not available, the historical exploitation likelihood cannot be quantified; however, the vulnerability was noted by the community without reports of active exploitation. The attack requires the attacker to be positioned on the same tailnet and to control a CA\u2011trusted endpoint, meaning it is an internal threat that relies on privileged network access. The risk is heightened for environments where tailnet peers are broadly allowed to act as DNS authorities. The vulnerability is not listed in the CISA KEV catalog at this time."}}}}, "created": "2026-04-28T21:00:13.248476+00:00", "updated": "2026-04-28T23:15:43.845497+00:00", "vendors": ["openclaw", "openclaw$PRODUCT$openclaw"]}