CVE-2026-30855Public exploitNetwork attack vector

Cross-tenant takeover via unchecked tenant IDs

Published Mar 7, 2026 · Updated Mar 7, 2026

Authorization bypass in Tencent WeKnora before 0.3.2 allows remote authenticated users to read, modify, or delete any tenant by ID. Tenant management handlers pass path-supplied tenant IDs to the service layer without checking ownership or cross-tenant privilege. Public registration supplies the required account, enabling API-key and knowledge-base exposure, unauthorized tenant changes, and tenant deletion.

CVSS severity8.8
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Tencent WeKnora before 0.3.2 allows remote authenticated users to read, modify, or delete any tenant by ID. Tenant management handlers pass path-supplied tenant IDs to the service layer without checking ownership or cross-tenant privilege. Public registration supplies the required account, enabling API-key and knowledge-base exposure, unauthorized tenant changes, and tenant deletion.

The record

CVE
CVE-2026-30855
Published
Mar 7, 2026
Updated
Mar 7, 2026
Vendor
Tencent
Product
WeKnora
Classifications
CWE-284, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Tencent · WeKnoraversion=< 0.3.2

Published CVSS scores

8.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
T1485Data Destruction

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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