{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-8786", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-05-17T10:23:37.846Z", "datePublished": "2026-05-18T03:00:14.994Z", "dateUpdated": "2026-05-18T03:00:14.994Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-05-18T03:00:14.994Z"}, "title": "Tencent WeKnora Config API Endpoint initialization.go getKnowledgeBaseForInitialization authorization", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-639", "lang": "en", "description": "Authorization Bypass"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-285", "lang": "en", "description": "Improper Authorization"}]}], "affected": [{"vendor": "Tencent", "product": "WeKnora", "versions": [{"version": "0.3.0", "status": "affected"}, {"version": "0.3.1", "status": "affected"}, {"version": "0.3.2", "status": "affected"}, {"version": "0.3.3", "status": "affected"}, {"version": "0.3.4", "status": "affected"}, {"version": "0.3.5", "status": "affected"}, {"version": "0.3.6", "status": "affected"}], "cpes": ["cpe:2.3:a:tencent:weknora:*:*:*:*:*:*:*:*"], "modules": ["Config API Endpoint"]}], "descriptions": [{"lang": "en", "value": "A vulnerability has been found in Tencent WeKnora up to 0.3.6. Affected by this issue is the function getKnowledgeBaseForInitialization of the file internal/handler/initialization.go of the component Config API Endpoint. The manipulation of the argument kbId leads to authorization bypass. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 5.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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:N/AC:L/PR:L/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:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R", "baseSeverity": "MEDIUM"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR"}}], "timeline": [{"time": "2026-05-17T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-05-17T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-05-17T12:28:46.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "Eric-z (VulDB User)", "type": "reporter"}, {"lang": "en", "value": "VulDB CNA Team", "type": "coordinator"}], "references": [{"url": "https://vuldb.com/vuln/364410", "name": "VDB-364410 | Tencent WeKnora Config API Endpoint initialization.go getKnowledgeBaseForInitialization authorization", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/364410/cti", "name": "VDB-364410 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/submit/812172", "name": "Submit #812172 | Tencent WeKnora <= v0.3.6 Insecure Direct Object Reference (CWE-639)", "tags": ["third-party-advisory"]}, {"url": "https://gist.github.com/YLChen-007/1cdc50418f29af7ae671466425e52c7b", "tags": ["exploit"]}]}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability has been found in Tencent WeKnora up to 0.3.6. Affected by this issue is the function getKnowledgeBaseForInitialization of the file internal/handler/initialization.go of the component Config API Endpoint. The manipulation of the argument kbId leads to authorization bypass. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way."}], "id": "CVE-2026-8786", "lastModified": "2026-05-18T04:16:34.743", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.4, "source": "cna@vuldb.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "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": "LOW", "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:L/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"}]}, "published": "2026-05-18T04:16:34.743", "references": [{"source": "cna@vuldb.com", "url": "https://gist.github.com/YLChen-007/1cdc50418f29af7ae671466425e52c7b"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/812172"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/364410"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/364410/cti"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-285"}, {"lang": "en", "value": "CWE-639"}], "source": "cna@vuldb.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "0.3.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "0.3.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "0.3.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "0.3.3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "0.3.4"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "0.3.5"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "0.3.6"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "WeKnora", "source": "cna", "vendor": "Tencent"}, "product": "weknora", "vendor": "tencent"}], "created": "2026-05-18T04:30:16.982504+00:00", "updated": "2026-05-18T04:30:17.232091+00:00", "vendors": ["tencent", "tencent$PRODUCT$weknora"]}