Tencent WeKnora up to 0.2.4 MCP stdio Setting command injection

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Tencent WeKnora up to 0.2.4. Affected by this issue is some unknown functionality of the component MCP stdio Setting Handler. Performing a manipulation results in command injection. This vulnerability is reported as CVE-2026-22688. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Tencent WeKnora up to 0.2.4. This affects an unknown code of the component MCP stdio Setting Handler. The manipulation with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.2.5, there is a command injection vulnerability that allows authenticated users to inject stdio_config.command/args into MCP stdio settings, causing the server to execute subprocesses using these injected values. This issue has been patched in version 0.2.5.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-22688 since 01/08/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Upgrading to version 0.2.5 eliminates this vulnerability. Applying the patch f7900a5e9a18c99d25cec9589ead9e4e59ce04bb is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-1879). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔒

CNA Base Score: 9.9
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: WeKnora 0.2.5
Patch: f7900a5e9a18c99d25cec9589ead9e4e59ce04bb

Timelineinfo

01/08/2026 CVE reserved
01/10/2026 +2 days Advisory disclosed
01/10/2026 +0 days VulDB entry created
01/22/2026 +12 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-78h3-63c4-5fqc
Status: Confirmed

CVE: CVE-2026-22688 (🔒)
GCVE (CVE): GCVE-0-2026-22688
GCVE (VulDB): GCVE-100-340407
EUVD: 🔒

Entryinfo

Created: 01/10/2026 10:35
Updated: 01/22/2026 18:32
Changes: 01/10/2026 10:35 (67), 01/11/2026 00:53 (1), 01/22/2026 18:32 (11)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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