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CVE-2026-30857 - Vulnerability Analysis

MediumCVSS: 5.3

Last Updated: March 9, 2026

WeKnora - Broken Access Control

Published: March 7, 2026Updated: March 9, 2026PoC AvailableRemote Exploitable

Overview

WeKnora < 0.3.0 contains a broken access control caused by cross-tenant authorization bypass in the knowledge base copy endpoint, letting authenticated users clone other tenants' knowledge bases, exploit requires authentication.

Severity & Score

Severity: Medium

CVSS Score: 5.3

Impact

Authenticated users can exfiltrate bulk data from other tenants, leading to significant data leakage across tenants.

Mitigation

Update to version 0.3.0 or later.

References

https://github.com/Tencent/WeKnora/security/advisories/GHSA-8rf9-c59g-f82f

Related Resources

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Details

CVE ID: CVE-2026-30857
Severity: Medium
CVSS Score: 5.3
Type: broken_access_control
Status: confirmed

CWE

CWE-639

CVSS Metrics

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N