CVE Explorer

CVE-2026-30857

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.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0782c461ed782fdb3f630402c9d0670ee2188aaa50f0df89269da6a99873dd83

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"WeKnora","vendor":"Tencent","versions":[{"status":"affected","version":"< 0.3.0"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:f4ab3c8e9388314f793c64a9b91cb80f0fd7501e8c2d0036f2549dbae2f05106 · sha256:c21360caa36076a2… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"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"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:f4ab3c8e9388314f793c64a9b91cb80f0fd7501e8c2d0036f2549dbae2f05106 · sha256:c21360caa36076a2… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:f4ab3c8e9388314f793c64a9b91cb80f0fd7501e8c2d0036f2549dbae2f05106 · sha256:c21360caa36076a2… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"name":"https://github.com/Tencent/WeKnora/security/advisories/GHSA-8rf9-c59g-f82f","tags":["x_refsource_CONFIRM"],"url":"https://github.com/Tencent/WeKnora/security/advisories/GHSA-8rf9-c59g-f82f"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f4ab3c8e9388314f793c64a9b91cb80f0fd7501e8c2d0036f2549dbae2f05106 · sha256:c21360caa36076a2… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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