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CVE-2026-30861

Tencent Weknora remote code execution

9.9 CRITICALPublic exploitEPSS 2.56%
  1. Published7 Mar 2026

Description

WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. From version 0.2.5 to before version 0.2.10, an unauthenticated remote code execution (RCE) vulnerability exists in the MCP stdio configuration validation. The application allows unrestricted user registration, meaning any attacker can create an account and exploit the command injection flaw. Despite implementing a whitelist for allowed commands (npx, uvx) and blacklists for dangerous arguments and environment variables, the validation can be bypassed using the -p flag with npx node. This allows any attacker to execute arbitrary commands with the application's privileges, leading to complete system compromise. This issue has been patched in version 0.2.10.

CVSS 3.1 breakdown

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

Affected products

Tencent Weknora≥ 0.2.5 < 0.2.10

Remediation

Fixed in
Tencent Weknora≥ 0.2.10

References

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Frequently asked

Is CVE-2026-30861 being actively exploited?

CVE-2026-30861 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 2.56%.

How severe is CVE-2026-30861?

CVE-2026-30861 has a CVSS 3.1 base score of 9.9, rated critical. EPSS estimates a 2.56% probability of exploitation.

Which products are affected by CVE-2026-30861?

Affected products include Tencent Weknora.

How do I fix CVE-2026-30861?

Upgrade affected software to a fixed version, for example Tencent Weknora 0.2.10 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-30861 against the real software inventory on every managed device, every day. 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.