Input Manipulation Vulnerability in esengine DeepSeek-Reasonix
CVE-2026-123653

5.3MEDIUM

Key Information:

Vendor

Esengine

Status
Deepseek-reasonix
Vendor
CVE Published:
6 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-123653?

A newly discovered vulnerability in esengine's DeepSeek-Reasonix product allows for improper handling of user inputs in the discoverDocs function located in internal/memory/doc.go. This security flaw can be exploited remotely, leading to significant risks if left unaddressed. The vulnerability primarily involves failed neutralization of input used for LLM prompting, which can potentially allow attackers to manipulate the system. Users are strongly advised to upgrade to version 2.53.0 or later to mitigate the risk associated with this vulnerability.

Affected Version(s)

DeepSeek-Reasonix 2.0

DeepSeek-Reasonix 2.1

DeepSeek-Reasonix 2.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-123653 - Proof of Concept

References

https://vuldb.com/vuln/431772
vdb-entrytechnical-description
https://vuldb.com/vuln/431772/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-123653
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ybyu (VulDB User)
.