CVE-2026-40351 | labring FastGPT up to 4.14.9.5 Password Field data query logic injection

VDB-358123 · CVE-2026-40351 · GCVE-0-2026-40351 LABRING FASTGPT UP TO 4.14.9.5 PASSWORD FIELD DATA QUERY LOGIC INJECTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 8.4 $0-$5k 2.09+ Summaryinfo A vulnerability has been found in labring FastGPT up to 4.14.9.5 and classified as critical. The impacted element is an unknown function of the component Password Field Handler. This manipulation causes data query logic injection. This vulnerability appears as CVE-2026-40351. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded. Detailsinfo A vulnerability has been found in labring FastGPT up to 4.14.9.5 and classified as critical. Affected by this vulnerability is an unknown part of the component Password Field Handler. The manipulation with an unknown input leads to a data query logic injection vulnerability. The CWE definition for the vulnerability is CWE-943. The product generates a query intended to access or manipulate data in a data store such as a database, but it does not neutralize or incorrectly neutralizes special elements that can modify the intended logic of the query. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is: FastGPT is an AI Agent building platform. In versions prior to 4.14.9.5, the password-based login endpoint uses TypeScript type assertion without runtime validation, allowing an unauthenticated attacker to pass a MongoDB query operator object (e.g., {"$ne": ""}) as the password field. This NoSQL injection bypasses the password check, enabling login as any user including the root administrator. This issue has been fixed in version 4.14.9.5. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-40351 since 04/11/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. Upgrading to version 4.14.9.5 eliminates this vulnerability. Productinfo Vendor labring Name FastGPT Version 4.14.9.0 4.14.9.1 4.14.9.2 4.14.9.3 4.14.9.4 4.14.9.5 Website Product: https://github.com/labring/FastGPT/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 8.5 VulDB Meta Temp Score: 8.4 VulDB Base Score: 7.3 VulDB Temp Score: 7.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 9.8 CNA Vector (GitHub_M): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Data query logic injection CWE: CWE-943 / CWE-20 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: FastGPT 4.14.9.5 Timelineinfo 04/11/2026 CVE reserved 04/17/2026 +6 days Advisory disclosed 04/17/2026 +0 days VulDB entry created 04/17/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-40351 (🔒) GCVE (CVE): GCVE-0-2026-40351 GCVE (VulDB): GCVE-100-358123 Entryinfo Created: 04/17/2026 23:48 Changes: 04/17/2026 23:48 (63) Complete: 🔍 Cache ID: 99:36A:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸