{"id":"CVE-2026-30857","state":"PUBLISHED","title":"WeKnora: Unauthorized Cross‑Tenant Knowledge Base Cloning","description":"WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.3.0, a cross-tenant authorization bypass in the knowledge base copy endpoint allows any authenticated user to clone (duplicate) another tenant’s knowledge base into their own tenant by knowing/guessing the source knowledge base ID. This enables bulk data exfiltration (document/FAQ content) across tenants. This issue has been patched in version 0.3.0.","publishedAt":"2026-03-07T16:33:45.566Z","updatedAt":"2026-03-09T18:24:26.835Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["Tencent WeKnora"],"affected":[{"vendor":"Tencent","product":"WeKnora","versions":[{"version":"< 0.3.0","status":"affected"}]}],"references":["https://github.com/Tencent/WeKnora/security/advisories/GHSA-8rf9-c59g-f82f"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/30xxx/CVE-2026-30857.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-30857","state":"PUBLISHED","datePublished":"2026-03-07T16:33:45.566Z","dateUpdated":"2026-03-09T18:24:26.835Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-05T21:27:35.342Z"},"containers":{"cna":{"title":"WeKnora: Unauthorized Cross‑Tenant Knowledge Base Cloning","descriptions":[{"lang":"en","value":"WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.3.0, a cross-tenant authorization bypass in the knowledge base copy endpoint allows any authenticated user to clone (duplicate) another tenant’s knowledge base into their own tenant by knowing/guessing the source knowledge base ID. This enables bulk data exfiltration (document/FAQ content) across tenants. This issue has been patched in version 0.3.0."}],"affected":[{"vendor":"Tencent","product":"WeKnora","versions":[{"version":"< 0.3.0","status":"affected"}]}],"references":[{"url":"https://github.com/Tencent/WeKnora/security/advisories/GHSA-8rf9-c59g-f82f","name":"https://github.com/Tencent/WeKnora/security/advisories/GHSA-8rf9-c59g-f82f","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"CWE-639: Authorization Bypass Through User-Controlled Key","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-07T16:33:45.566Z"},"source":{"advisory":"GHSA-8rf9-c59g-f82f","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-09T17:52:20.654301Z","id":"CVE-2026-30857","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-09T18:24:26.835Z"}}]}}}