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CVE-2026-30855

Tencent Weknora broken access control

8.8 HIGHPublic exploitEPSS 0.48%
  1. Published7 Mar 2026

Description

WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.3.2, an authorization bypass in tenant management endpoints of WeKnora application allows any authenticated user to read, modify, or delete any tenant by ID. Since account registration is open to the public, this vulnerability allows any unauthenticated attacker to register an account and subsequently exploit the system. This enables cross-tenant account takeover and destruction, making the impact critical. This issue has been patched in version 0.3.2.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Tencent Weknora< 0.3.2

Remediation

Fixed in
Tencent Weknora≥ 0.3.2

References

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Frequently asked

Is CVE-2026-30855 being actively exploited?

CVE-2026-30855 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.48%.

How severe is CVE-2026-30855?

CVE-2026-30855 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 0.48% probability of exploitation.

Which products are affected by CVE-2026-30855?

Affected products include Tencent Weknora.

How do I fix CVE-2026-30855?

Upgrade affected software to a fixed version, for example Tencent Weknora 0.3.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-30855 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.