CVE-2026-7844

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-7844", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-05-05T10:20:48.141Z", "datePublished": "2026-05-05T15:00:13.227Z", "dateUpdated": "2026-05-06T14:16:25.965Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-05-05T15:00:13.227Z"}, "title": "chatchat-space Langchain-Chatchat Compatible File Service openai_routes.py delete_file missing authentication", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-306", "lang": "en", "description": "Missing Authentication"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-287", "lang": "en", "description": "Improper Authentication"}]}], "affected": [{"vendor": "chatchat-space", "product": "Langchain-Chatchat", "versions": [{"version": "0.3.1.0", "status": "affected"}, {"version": "0.3.1.1", "status": "affected"}, {"version": "0.3.1.2", "status": "affected"}, {"version": "0.3.1.3", "status": "affected"}], "modules": ["Compatible File Service"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was detected in chatchat-space Langchain-Chatchat up to 0.3.1.3. This vulnerability affects the function files/list_files/retrieve_file/retrieve_file_content/delete_file of the file libs/chatchat-server/chatchat/server/api_server/openai_routes.py of the component Compatible File Service. The manipulation results in missing authentication. The attacker must have access to the local network to execute the attack. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 5.3, "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P", "baseSeverity": "MEDIUM"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 6.3, "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R", "baseSeverity": "MEDIUM"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 6.3, "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R", "baseSeverity": "MEDIUM"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 5.8, "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR"}}], "timeline": [{"time": "2026-05-05T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-05-05T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-05-05T12:26:09.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "Dem00 (VulDB User)", "type": "reporter"}, {"lang": "en", "value": "VulDB CNA Team", "type": "coordinator"}], "references": [{"url": "https://vuldb.com/vuln/361123", "name": "VDB-361123 | chatchat-space Langchain-Chatchat Compatible File Service openai_routes.py delete_file missing authentication", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/361123/cti", "name": "VDB-361123 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/submit/807790", "name": "Submit #807790 | chatchat-space Langchain-Chatchat 0.3.1.3 Missing Authorization / CWE-862", "tags": ["third-party-advisory"]}, {"url": "https://github.com/chatchat-space/Langchain-Chatchat/issues/5465", "tags": ["issue-tracking"]}, {"url": "https://github.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-4-Missing-Auth-File-Endpoints.md", "tags": ["exploit"]}, {"url": "https://github.com/chatchat-space/Langchain-Chatchat/", "tags": ["product"]}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-06T14:16:11.330952Z", "id": "CVE-2026-7844", "options": [{"Exploitation": "poc"}, {"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": "2026-05-06T14:16:25.965Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-7844", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-06T14:16:11.330952Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-06T14:16:20.006Z"}}], "cna": {"title": "chatchat-space Langchain-Chatchat Compatible File Service openai_routes.py delete_file missing authentication", "credits": [{"lang": "en", "type": "reporter", "value": "Dem00 (VulDB User)"}, {"lang": "en", "type": "coordinator", "value": "VulDB CNA Team"}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 5.3, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 6.3, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 6.3, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 5.8, "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR"}}], "affected": [{"vendor": "chatchat-space", "modules": ["Compatible File Service"], "product": "Langchain-Chatchat", "versions": [{"status": "affected", "version": "0.3.1.0"}, {"status": "affected", "version": "0.3.1.1"}, {"status": "affected", "version": "0.3.1.2"}, {"status": "affected", "version": "0.3.1.3"}]}], "timeline": [{"lang": "en", "time": "2026-05-05T00:00:00.000Z", "value": "Advisory disclosed"}, {"lang": "en", "time": "2026-05-05T02:00:00.000Z", "value": "VulDB entry created"}, {"lang": "en", "time": "2026-05-05T12:26:09.000Z", "value": "VulDB entry last update"}], "references": [{"url": "https://vuldb.com/vuln/361123", "name": "VDB-361123 | chatchat-space Langchain-Chatchat Compatible File Service openai_routes.py delete_file missing authentication", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/361123/cti", "name": "VDB-361123 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/submit/807790", "name": "Submit #807790 | chatchat-space Langchain-Chatchat 0.3.1.3 Missing Authorization / CWE-862", "tags": ["third-party-advisory"]}, {"url": "https://github.com/chatchat-space/Langchain-Chatchat/issues/5465", "tags": ["issue-tracking"]}, {"url": "https://github.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-4-Missing-Auth-File-Endpoints.md", "tags": ["exploit"]}, {"url": "https://github.com/chatchat-space/Langchain-Chatchat/", "tags": ["product"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was detected in chatchat-space Langchain-Chatchat up to 0.3.1.3. This vulnerability affects the function files/list_files/retrieve_file/retrieve_file_content/delete_file of the file libs/chatchat-server/chatchat/server/api_server/openai_routes.py of the component Compatible File Service. The manipulation results in missing authentication. The attacker must have access to the local network to execute the attack. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-306", "description": "Missing Authentication"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-287", "description": "Improper Authentication"}]}], "providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-05-05T15:00:13.227Z"}}}, "cveMetadata": {"cveId": "CVE-2026-7844", "state": "PUBLISHED", "dateUpdated": "2026-05-06T14:16:25.965Z", "dateReserved": "2026-05-05T10:20:48.141Z", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "datePublished": "2026-05-05T15:00:13.227Z", "assignerShortName": "VulDB"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"modules": ["Compatible File Service"], "product": "Langchain-Chatchat", "vendor": "chatchat-space", "versions": [{"status": "affected", "version": "0.3.1.0"}, {"status": "affected", "version": "0.3.1.1"}, {"status": "affected", "version": "0.3.1.2"}, {"status": "affected", "version": "0.3.1.3"}]}], "source": "cna@vuldb.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was detected in chatchat-space Langchain-Chatchat up to 0.3.1.3. This vulnerability affects the function files/list_files/retrieve_file/retrieve_file_content/delete_file of the file libs/chatchat-server/chatchat/server/api_server/openai_routes.py of the component Compatible File Service. The manipulation results in missing authentication. The attacker must have access to the local network to execute the attack. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet."}, {"lang": "es", "value": "Se detect\u00f3 una vulnerabilidad en chatchat-space Langchain-Chatchat hasta 0.3.1.3. Esta vulnerabilidad afecta a la funci\u00f3n files/list_files/retrieve_file/retrieve_file_content/delete_file del archivo libs/chatchat-server/chatchat/server/api_server/openai_routes.py del componente Compatible File Service. La manipulaci\u00f3n resulta en falta de autenticaci\u00f3n. El atacante debe tener acceso a la red local para ejecutar el ataque. El exploit ahora es p\u00fablico y puede ser utilizado. Se inform\u00f3 al proyecto del problema tempranamente a trav\u00e9s de un informe de incidencias, pero a\u00fan no ha respondido."}], "id": "CVE-2026-7844", "lastModified": "2026-07-24T20:10:00.147", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 6.5, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.4, "source": "cna@vuldb.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "ADJACENT", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.1, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "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:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-7844", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-06T14:16:11.330952Z", "version": "2.0.3"}}]}, "published": "2026-05-05T16:16:19.217", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-4-Missing-Auth-File-Endpoints.md"}, {"source": "cna@vuldb.com", "url": "https://github.com/chatchat-space/Langchain-Chatchat/"}, {"source": "cna@vuldb.com", "url": "https://github.com/chatchat-space/Langchain-Chatchat/issues/5465"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/807790"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/361123"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/361123/cti"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}, {"lang": "en", "value": "CWE-306"}], "source": "cna@vuldb.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "0.3.1.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "0.3.1.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "0.3.1.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "0.3.1.3"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Langchain-Chatchat", "source": "cna", "vendor": "chatchat-space"}, "product": "langchain-chatchat", "vendor": "chatchat-space"}], "created": "2026-05-05T18:15:29.753335+00:00", "updated": "2026-05-05T19:00:11.517695+00:00", "vendors": ["chatchat-space", "chatchat-space$PRODUCT$langchain-chatchat"]}