OS Command Injection Flaw in Purocean Yank Note Terminal Handler
CVE-2026-122157

5.3MEDIUM

Key Information:

Vendor

Purocean

Status
Yank Note
Vendor
CVE Published:
5 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-122157?

A vulnerability has been detected in Purocean Yank Note version 3.93.0, specifically in the Terminal Handler component's checkPermission function within src/main/server/index.ts. This flaw allows attackers to execute OS commands via remote exploitation, posing significant risks to system integrity. An available exploit can be used for malicious purposes, emphasizing the necessity for users to upgrade to version 3.93.1, which includes a critical patch to remediate this security issue.

Affected Version(s)

Yank Note 3.93.0

Yank Note 3.93.1

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-2026-122157 - Proof of Concept

References

https://vuldb.com/vuln/431157
vdb-entrytechnical-description
https://vuldb.com/vuln/431157/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-122157
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

CopperKoi (VulDB User)
.