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CVE-2026-30861

WeKnora: Remote Code Execution (RCE) via Command Injection in MCP Stdio Configuration Validation

Published: Mar 7, 2026Updated: Mar 9, 2026 Sources: CVE List NVD GHSACWE-78
9.9CRITICAL
NVD MITRE
EPSS Score
2.1%
Top 21.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-78

Affected Products

Tencent
commercial·CNaka tencent wechat, tencent hunyuan
WeKnoraMixed
Communications / messaging-chat
Go
package-ecosystem
github.com/Tencent/WeKnora
OSS Libraries
and 1 more affected products View all →

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Execution
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References

https://github.com/Tencent/WeKnora/security/advisories/GHSA-r55h-3rwj-hcmg
github.com
https://nvd.nist.gov/vuln/detail/CVE-2026-30861
nvd.nist.gov
https://github.com/Tencent/WeKnora/commit/57d6fea8bc265ad28b385e0158957c870cff4b50
github.com
and 1 more references View all →
News mentions
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