CVE-2026-27545

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-27545", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-02-20T12:31:54.451Z", "datePublished": "2026-03-18T01:34:28.702Z", "dateUpdated": "2026-06-23T16:14:09.622Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-06-23T16:14:09.622Z"}, "title": "OpenClaw < 2026.2.26 - Approval Bypass via Parent Symlink Current Working Directory Rebind", "descriptions": [{"lang": "en", "value": "OpenClaw versions prior to 2026.2.26 contain an approval bypass vulnerability in system.run execution that allows attackers to execute commands from unintended filesystem locations by rebinding writable parent symlinks in the current working directory after approval. An attacker can modify mutable parent symlink path components between approval and execution time to redirect command execution to a different location while preserving the visible working directory string."}], "tags": ["x_open-source"], "datePublic": "2026-02-26T00:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-367", "description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition", "type": "CWE"}]}], "affected": [{"vendor": "OpenClaw", "product": "OpenClaw", "defaultStatus": "unaffected", "packageURL": "pkg:npm/openclaw", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "2026.2.26"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "2026.2.26"}]}]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "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": 6.9, "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"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "LOW", "version": "3.1", "baseSeverity": "MEDIUM", "baseScore": 6.1, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L"}}], "references": [{"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-f7ww-2725-qvw2", "name": "GitHub Security Advisory (GHSA-f7ww-2725-qvw2)", "tags": ["vendor-advisory"]}, {"url": "https://github.com/openclaw/openclaw/commit/78a7ff2d50fb3bcef351571cb5a0f21430a340c1", "name": "Patch Commit #1", "tags": ["patch"]}, {"url": "https://github.com/openclaw/openclaw/commit/d82c042b09727a6148f3ca651b254c4a677aff26", "name": "Patch Commit #2", "tags": ["patch"]}, {"url": "https://github.com/openclaw/openclaw/commit/d06632ba45a8482192792c55d5ff0b2e21abb0a7", "name": "Patch Commit #3", "tags": ["patch"]}, {"url": "https://github.com/openclaw/openclaw/commit/4e690e09c746408b5e27617a20cb3fdc5190dbda", "name": "Patch Commit #4", "tags": ["patch"]}, {"url": "https://github.com/openclaw/openclaw/commit/4b4718c8dfce2e2c48404aa5088af7c013bed60b", "name": "Patch Commit #5", "tags": ["patch"]}, {"name": "VulnCheck Advisory: OpenClaw < 2026.2.26 - Approval Bypass via Parent Symlink Current Working Directory Rebind", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/openclaw-approval-bypass-via-parent-symlink-current-working-directory-rebind"}], "credits": [{"lang": "en", "value": "tdjackey", "type": "reporter"}], "x_generator": {"engine": "vulncheck"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-18T14:01:58.503107Z", "id": "CVE-2026-27545", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-18T14:02:06.726Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-27545", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-18T14:01:58.503107Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-18T14:02:02.896Z"}}], "cna": {"tags": ["x_open-source"], "title": "OpenClaw < 2026.2.26 - Approval Bypass via Parent Symlink Current Working Directory Rebind", "credits": [{"lang": "en", "type": "reporter", "value": "tdjackey"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 6.9, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "OpenClaw", "product": "OpenClaw", "versions": [{"status": "affected", "version": "0", "lessThan": "2026.2.26", "versionType": "semver"}], "packageURL": "pkg:npm/openclaw", "defaultStatus": "unaffected"}], "datePublic": "2026-02-26T00:00:00.000Z", "references": [{"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-f7ww-2725-qvw2", "name": "GitHub Security Advisory (GHSA-f7ww-2725-qvw2)", "tags": ["vendor-advisory"]}, {"url": "https://github.com/openclaw/openclaw/commit/78a7ff2d50fb3bcef351571cb5a0f21430a340c1", "name": "Patch Commit #1", "tags": ["patch"]}, {"url": "https://github.com/openclaw/openclaw/commit/d82c042b09727a6148f3ca651b254c4a677aff26", "name": "Patch Commit #2", "tags": ["patch"]}, {"url": "https://github.com/openclaw/openclaw/commit/d06632ba45a8482192792c55d5ff0b2e21abb0a7", "name": "Patch Commit #3", "tags": ["patch"]}, {"url": "https://github.com/openclaw/openclaw/commit/4e690e09c746408b5e27617a20cb3fdc5190dbda", "name": "Patch Commit #4", "tags": ["patch"]}, {"url": "https://github.com/openclaw/openclaw/commit/4b4718c8dfce2e2c48404aa5088af7c013bed60b", "name": "Patch Commit #5", "tags": ["patch"]}, {"url": "https://www.vulncheck.com/advisories/openclaw-approval-bypass-via-parent-symlink-current-working-directory-rebind", "name": "VulnCheck Advisory: OpenClaw < 2026.2.26 - Approval Bypass via Parent Symlink Current Working Directory Rebind", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "vulncheck"}, "descriptions": [{"lang": "en", "value": "OpenClaw versions prior to 2026.2.26 contain an approval bypass vulnerability in system.run execution that allows attackers to execute commands from unintended filesystem locations by rebinding writable parent symlinks in the current working directory after approval. An attacker can modify mutable parent symlink path components between approval and execution time to redirect command execution to a different location while preserving the visible working directory string."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-367", "description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition"}]}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*", "vulnerable": true, "versionEndExcluding": "2026.2.26"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-06-23T16:14:09.622Z"}}}, "cveMetadata": {"cveId": "CVE-2026-27545", "state": "PUBLISHED", "dateUpdated": "2026-06-23T16:14:09.622Z", "dateReserved": "2026-02-20T12:31:54.451Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2026-03-18T01:34:28.702Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:npm/openclaw", "product": "OpenClaw", "vendor": "OpenClaw", "versions": [{"lessThan": "2026.2.26", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "disclosure@vulncheck.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "2AB7D7E0-2F21-4EC6-A3D5-F53A644120E4", "versionEndExcluding": "2026.2.26", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenClaw versions prior to 2026.2.26 contain an approval bypass vulnerability in system.run execution that allows attackers to execute commands from unintended filesystem locations by rebinding writable parent symlinks in the current working directory after approval. An attacker can modify mutable parent symlink path components between approval and execution time to redirect command execution to a different location while preserving the visible working directory string."}, {"lang": "es", "value": "Las versiones de OpenClaw anteriores a 2026.2.26 contienen una vulnerabilidad de omisi\u00f3n de aprobaci\u00f3n en la ejecuci\u00f3n de system.run que permite a los atacantes ejecutar comandos desde ubicaciones de sistema de archivos no intencionadas al reasignar symlinks padre escribibles en el directorio de trabajo actual despu\u00e9s de la aprobaci\u00f3n. Un atacante puede modificar componentes de ruta de symlink padre mutables entre el tiempo de aprobaci\u00f3n y ejecuci\u00f3n para redirigir la ejecuci\u00f3n de comandos a una ubicaci\u00f3n diferente mientras se preserva la cadena del directorio de trabajo visible."}], "id": "CVE-2026-27545", "lastModified": "2026-06-17T10:27:19.040", "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": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 3.6, "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-2026-27545", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-18T14:01:58.503107Z", "version": "2.0.3"}}]}, "published": "2026-03-18T02:16:23.837", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Patch"], "url": "https://github.com/openclaw/openclaw/commit/4b4718c8dfce2e2c48404aa5088af7c013bed60b"}, {"source": "disclosure@vulncheck.com", "tags": ["Patch"], "url": "https://github.com/openclaw/openclaw/commit/4e690e09c746408b5e27617a20cb3fdc5190dbda"}, {"source": "disclosure@vulncheck.com", "tags": ["Patch"], "url": "https://github.com/openclaw/openclaw/commit/78a7ff2d50fb3bcef351571cb5a0f21430a340c1"}, {"source": "disclosure@vulncheck.com", "tags": ["Patch"], "url": "https://github.com/openclaw/openclaw/commit/d06632ba45a8482192792c55d5ff0b2e21abb0a7"}, {"source": "disclosure@vulncheck.com", "tags": ["Patch"], "url": "https://github.com/openclaw/openclaw/commit/d82c042b09727a6148f3ca651b254c4a677aff26"}, {"source": "disclosure@vulncheck.com", "tags": ["Vendor Advisory"], "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-f7ww-2725-qvw2"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://www.vulncheck.com/advisories/openclaw-approval-bypass-via-parent-symlink-current-working-directory-rebind"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-367"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,2026.2.26)"}}], "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": "2026-03-18T03:50:28.156429+00:00", "value": {"mitigation_remediation": ["Upgrade OpenClaw to version 2026.2.26 or later to remediate the approval bypass via symbolic link rebind", "Restrict write permissions on parent symlinks used in OpenClaw\u2019s current working directory paths so that only trusted users can modify them", "After upgrading, verify that system.run no longer allows execution from arbitrary paths and monitor symlink integrity in critical directories"], "summary": {"action": "Patch", "impact": "Command Execution"}, "threat_synthesis": {"affected_systems": "All releases of OpenClaw prior to version 2026.2.26 are affected. The CPE string cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:* denotes every Node.js based OpenClaw build without the 2026.2.26 update.", "description_and_impact": "The vulnerability in OpenClaw arises from improper handling of symbolic links (CWE\u2011367) in the system.run function, allowing attackers to bind a writable parent symlink after the approval step. This causes the program to execute commands from a different filesystem location while the visible working directory remains unchanged, potentially granting the attacker execution rights in the context of the OpenClaw process.", "risk_and_exploitability": "The CVSS score of 6.9 indicates medium severity. No EPSS score is available and the vulnerability is not listed in the CISA KEV catalog. Based on the description, it is inferred that exploitation requires an attacker to have write access to the parent symbolic link within the current working directory; thus local filesystem permissions are a prerequisite. The attack vector is likely local, but the impact is to execute arbitrary commands with the privileges of the OpenClaw process."}}}}, "created": "2026-03-18T10:42:04.715399+00:00", "updated": "2026-03-24T10:59:34.061937+00:00", "vendors": ["openclaw", "openclaw$PRODUCT$openclaw"]}