{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-75128", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-08-17T18:39:57.660Z", "datePublished": "2026-10-20T00:46:08.977Z", "dateUpdated": "2026-10-20T14:34:07.343Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-20T00:46:08.977Z"}, "datePublic": "2026-10-15T00:00:00.000Z", "title": "Langchain-Chatchat through 0.3.1.3 Unauthenticated RCE via /tools/call Endpoint", "descriptions": [{"lang": "en", "value": "Langchain-Chatchat through 0.3.1.3 exposes a POST /tools/call API endpoint that invokes any registered tool by name without authentication, leaving the always-registered shell tool callable. Remote attackers can send a single request naming the shell tool to execute arbitrary OS commands as the server user (root in the shipped Docker image)."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Missing Authentication for Critical Function", "cweId": "CWE-306", "type": "CWE"}]}], "affected": [{"vendor": "chatchat-space", "product": "Langchain-Chatchat", "defaultStatus": "unaffected", "versions": [{"version": "0", "lessThanOrEqual": "0.3.1.3", "status": "affected", "versionType": "custom"}], "packageURL": "pkg:pypi/langchain-chatchat", "collectionURL": "https://pypi.org", "repo": "https://github.com/chatchat-space/Langchain-Chatchat"}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:chatchat-space:langchain-chatchat:*:*:*:*:*:*:*:*", "versionEndIncluding": "0.3.1.3"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 9.3, "baseSeverity": "CRITICAL"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL"}}], "references": [{"url": "https://www.lasso.security/vulnerability-database/cve-2026-75128", "tags": ["technical-description", "exploit"], "name": "Lasso.security Advisory"}, {"url": "https://github.com/chatchat-space/Langchain-Chatchat/blob/a6a9193b5002061719f0eee62c6310bd5b1b7f63/libs/chatchat-server/chatchat/server/api_server/tool_routes.py#L33", "tags": ["technical-description"]}, {"name": "VulnCheck Advisory: Langchain-Chatchat through 0.3.1.3 Unauthenticated RCE via /tools/call Endpoint", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/langchain-chatchat-through-0.3.1.3-unauthenticated-rce-via-tools-call-endpoint"}], "credits": [{"lang": "en", "value": "Noy Pearl", "type": "finder"}, {"lang": "en", "value": "Michael Sromin", "type": "finder"}, {"lang": "en", "value": "Ophir Dror", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-20T14:33:41.797170Z", "id": "CVE-2026-75128", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-20T14:34:07.343Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-75128", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-20T14:33:41.797170Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-20T14:33:59.481Z"}}], "cna": {"title": "Langchain-Chatchat through 0.3.1.3 Unauthenticated RCE via /tools/call Endpoint", "credits": [{"lang": "en", "type": "finder", "value": "Noy Pearl"}, {"lang": "en", "type": "finder", "value": "Michael Sromin"}, {"lang": "en", "type": "finder", "value": "Ophir Dror"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "baseScore": 9.3, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"repo": "https://github.com/chatchat-space/Langchain-Chatchat", "vendor": "chatchat-space", "product": "Langchain-Chatchat", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "0.3.1.3"}], "packageURL": "pkg:pypi/langchain-chatchat", "collectionURL": "https://pypi.org", "defaultStatus": "unaffected"}], "datePublic": "2026-10-15T00:00:00.000Z", "references": [{"url": "https://www.lasso.security/vulnerability-database/cve-2026-75128", "name": "Lasso.security Advisory", "tags": ["technical-description", "exploit"]}, {"url": "https://github.com/chatchat-space/Langchain-Chatchat/blob/a6a9193b5002061719f0eee62c6310bd5b1b7f63/libs/chatchat-server/chatchat/server/api_server/tool_routes.py#L33", "tags": ["technical-description"]}, {"url": "https://www.vulncheck.com/advisories/langchain-chatchat-through-0.3.1.3-unauthenticated-rce-via-tools-call-endpoint", "name": "VulnCheck Advisory: Langchain-Chatchat through 0.3.1.3 Unauthenticated RCE via /tools/call Endpoint", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "vulncheck-endgame"}, "descriptions": [{"lang": "en", "value": "Langchain-Chatchat through 0.3.1.3 exposes a POST /tools/call API endpoint that invokes any registered tool by name without authentication, leaving the always-registered shell tool callable. Remote attackers can send a single request naming the shell tool to execute arbitrary OS commands as the server user (root in the shipped Docker image)."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-306", "description": "Missing Authentication for Critical Function"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:chatchat-space:langchain-chatchat:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndIncluding": "0.3.1.3"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-20T00:46:08.977Z"}}}, "cveMetadata": {"cveId": "CVE-2026-75128", "state": "PUBLISHED", "dateUpdated": "2026-10-20T14:34:07.343Z", "dateReserved": "2026-08-17T18:39:57.660Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2026-10-20T00:46:08.977Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://pypi.org", "defaultStatus": "unaffected", "packageURL": "pkg:pypi/langchain-chatchat", "product": "Langchain-Chatchat", "repo": "https://github.com/chatchat-space/Langchain-Chatchat", "vendor": "chatchat-space", "versions": [{"lessThanOrEqual": "0.3.1.3", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Langchain-Chatchat through 0.3.1.3 exposes a POST /tools/call API endpoint that invokes any registered tool by name without authentication, leaving the always-registered shell tool callable. Remote attackers can send a single request naming the shell tool to execute arbitrary OS commands as the server user (root in the shipped Docker image)."}], "id": "CVE-2026-75128", "lastModified": "2026-10-20T15:17:30.620", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.3, "baseSeverity": "CRITICAL", "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:N/PR:N/UI:N/VC:H/VI:H/VA:H/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": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-75128", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-20T14:33:41.797170Z", "version": "2.0.3"}}]}, "published": "2026-10-20T01:17:19.063", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/chatchat-space/Langchain-Chatchat/blob/a6a9193b5002061719f0eee62c6310bd5b1b7f63/libs/chatchat-server/chatchat/server/api_server/tool_routes.py#L33"}, {"source": "disclosure@vulncheck.com", "url": "https://www.lasso.security/vulnerability-database/cve-2026-75128"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/langchain-chatchat-through-0.3.1.3-unauthenticated-rce-via-tools-call-endpoint"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,0.3.1.3]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Langchain-Chatchat", "source": "cna", "vendor": "chatchat-space"}, "product": "langchain-chatchat", "vendor": "chatchat-space"}], "created": "2026-10-20T03:00:16.291435+00:00", "updated": "2026-10-20T11:00:15.206004+00:00", "vendors": ["chatchat-space", "chatchat-space$PRODUCT$langchain-chatchat"], "weaknesses": ["CWE-306"]}