{"id":"CVE-2026-66003","state":"PUBLISHED","title":"Frappe: Access control bypass via REST API dot-notation fields on linked doctypes","description":"Frappe is a full-stack web application framework written in Python and JavaScript. Prior to version 15.115.0, an access control bypass in the REST API allows a user to read data from Linked DocTypes that they are not authorized to access. When a document references another document through a Link field, the framework does not consistently enforce the linked DocType's own permissions when the record is retrieved through the REST API, so a low-privileged authenticated user can obtain fields from linked records outside their permitted scope. This issue is fixed in version 15.115.0.","publishedAt":"2026-08-26T19:30:28.968Z","updatedAt":"2026-08-27T14:44:42.733Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["frappe frappe"],"affected":[{"vendor":"frappe","product":"frappe","versions":[{"version":"< 15.115.0","status":"affected"}]}],"references":["https://github.com/frappe/frappe/security/advisories/GHSA-p25m-7rvg-6fvr","https://github.com/frappe/frappe/releases/tag/v15.115.0"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/66xxx/CVE-2026-66003.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-66003","state":"PUBLISHED","datePublished":"2026-08-26T19:30:28.968Z","dateUpdated":"2026-08-27T14:44:42.733Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-23T18:54:15.833Z"},"containers":{"cna":{"title":"Frappe: Access control bypass via REST API dot-notation fields on linked doctypes","descriptions":[{"lang":"en","value":"Frappe is a full-stack web application framework written in Python and JavaScript. Prior to version 15.115.0, an access control bypass in the REST API allows a user to read data from Linked DocTypes that they are not authorized to access. When a document references another document through a Link field, the framework does not consistently enforce the linked DocType's own permissions when the record is retrieved through the REST API, so a low-privileged authenticated user can obtain fields from linked records outside their permitted scope. This issue is fixed in version 15.115.0."}],"affected":[{"vendor":"frappe","product":"frappe","versions":[{"version":"< 15.115.0","status":"affected"}]}],"references":[{"url":"https://github.com/frappe/frappe/security/advisories/GHSA-p25m-7rvg-6fvr","name":"https://github.com/frappe/frappe/security/advisories/GHSA-p25m-7rvg-6fvr","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/frappe/frappe/releases/tag/v15.115.0","name":"https://github.com/frappe/frappe/releases/tag/v15.115.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-26T19:30:28.968Z"},"source":{"advisory":"GHSA-p25m-7rvg-6fvr","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-27T14:43:45.285833Z","id":"CVE-2026-66003","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-27T14:44:42.733Z"}}]}}}