{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-34509", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-03-30T13:51:47.549Z", "datePublished": "2026-03-31T11:17:22.786Z", "dateUpdated": "2026-03-31T13:27:31.570Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-03-31T11:17:22.786Z"}, "datePublic": "2026-03-11T00:00:00.000Z", "title": "OpenClaw < 2026.3.8 - Sender Allowlist Bypass in Microsoft Teams Plugin via Route Allowlist Configuration", "descriptions": [{"lang": "en", "value": "OpenClaw before 2026.3.8 contains a sender allowlist bypass vulnerability in its Microsoft Teams plugin that allows unauthorized senders to bypass intended authorization checks. When a team/channel route allowlist is configured with an empty groupAllowFrom parameter, the message handler synthesizes wildcard sender authorization, permitting any sender in the matched team/channel to trigger replies in allowlisted Teams routes."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Incorrect Authorization", "cweId": "CWE-863", "type": "CWE"}]}], "affected": [{"vendor": "OpenClaw", "product": "OpenClaw", "defaultStatus": "unaffected", "packageURL": "pkg:npm/openclaw", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "2026.3.8"}, {"version": "2026.3.8", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "2026.3.8"}]}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 2.3, "baseSeverity": "LOW", "exploitMaturity": "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:L/VI:N/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS"}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "format": "CVSS"}], "references": [{"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-g7cr-9h7q-4qxq", "name": "GitHub Security Advisory (GHSA-g7cr-9h7q-4qxq)", "tags": ["third-party-advisory"]}, {"url": "https://github.com/openclaw/openclaw/commit/88aee9161e0e6d32e810a25711e32a808a1777b2", "name": "Patch Commit", "tags": ["patch"]}, {"name": "VulnCheck Advisory: OpenClaw < 2026.3.8 - Sender Allowlist Bypass in Microsoft Teams Plugin via Route Allowlist Configuration", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/openclaw-sender-allowlist-bypass-in-microsoft-teams-plugin-via-route-allowlist-configuration-2"}], "x_generator": {"engine": "vulncheck"}, "credits": [{"lang": "en", "value": "Peng Zhou (@zpbrent)", "type": "reporter"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-31T13:27:23.777425Z", "id": "CVE-2026-34509", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"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": "2026-03-31T13:27:31.570Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-34509", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-31T13:27:23.777425Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-31T13:27:27.601Z"}}], "cna": {"title": "OpenClaw < 2026.3.8 - Sender Allowlist Bypass in Microsoft Teams Plugin via Route Allowlist Configuration", "credits": [{"lang": "en", "type": "reporter", "value": "Peng Zhou (@zpbrent)"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 2.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "LOW", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "OpenClaw", "product": "OpenClaw", "versions": [{"status": "affected", "version": "0", "lessThan": "2026.3.8", "versionType": "semver"}, {"status": "unaffected", "version": "2026.3.8", "versionType": "semver"}], "packageURL": "pkg:npm/openclaw", "defaultStatus": "unaffected"}], "datePublic": "2026-03-11T00:00:00.000Z", "references": [{"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-g7cr-9h7q-4qxq", "name": "GitHub Security Advisory (GHSA-g7cr-9h7q-4qxq)", "tags": ["third-party-advisory"]}, {"url": "https://github.com/openclaw/openclaw/commit/88aee9161e0e6d32e810a25711e32a808a1777b2", "name": "Patch Commit", "tags": ["patch"]}, {"url": "https://www.vulncheck.com/advisories/openclaw-sender-allowlist-bypass-in-microsoft-teams-plugin-via-route-allowlist-configuration-2", "name": "VulnCheck Advisory: OpenClaw < 2026.3.8 - Sender Allowlist Bypass in Microsoft Teams Plugin via Route Allowlist Configuration", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "vulncheck"}, "descriptions": [{"lang": "en", "value": "OpenClaw before 2026.3.8 contains a sender allowlist bypass vulnerability in its Microsoft Teams plugin that allows unauthorized senders to bypass intended authorization checks. When a team/channel route allowlist is configured with an empty groupAllowFrom parameter, the message handler synthesizes wildcard sender authorization, permitting any sender in the matched team/channel to trigger replies in allowlisted Teams routes."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-863", "description": "Incorrect Authorization"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*", "vulnerable": true, "versionEndExcluding": "2026.3.8"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-03-31T11:17:22.786Z"}}}, "cveMetadata": {"cveId": "CVE-2026-34509", "state": "PUBLISHED", "dateUpdated": "2026-03-31T13:27:31.570Z", "dateReserved": "2026-03-30T13:51:47.549Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2026-03-31T11:17:22.786Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.2"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "OpenClaw before 2026.3.8 contains a sender allowlist bypass vulnerability in its Microsoft Teams plugin that allows unauthorized senders to bypass intended authorization checks. When a team/channel route allowlist is configured with an empty groupAllowFrom parameter, the message handler synthesizes wildcard sender authorization, permitting any sender in the matched team/channel to trigger replies in allowlisted Teams routes."}], "id": "CVE-2026-34509", "lastModified": "2026-03-31T12:16:30.840", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "disclosure@vulncheck.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.3, "baseSeverity": "LOW", "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:L/VI:N/VA:N/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": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}]}, "published": "2026-03-31T12:16:30.840", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/openclaw/openclaw/commit/88aee9161e0e6d32e810a25711e32a808a1777b2"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-g7cr-9h7q-4qxq"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/openclaw-sender-allowlist-bypass-in-microsoft-teams-plugin-via-route-allowlist-configuration-2"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "disclosure@vulncheck.com", "type": "Primary"}]}

{}

{}