Authentication Bypass in Chia Blockchain 2.1.0 by Chia Network
CVE-2026-3194

2LOW

Key Information:

Vendor

Chia

Status
Blockchain
Vendor
CVE Published:
25 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3194?

A flaw in the Chia Blockchain 2.1.0 RPC Server's Master Passphrase Handler allows for an authentication bypass through the functions send_transaction/get_private_key. This vulnerability poses a local security risk by enabling unauthorized access to sensitive operations. Despite the vendor being alerted via email, they have designated this issue as 'by design,' placing the responsibility of host security on the user. With the exploit being publicly available, users are advised to implement additional security measures.

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Affected Version(s)

Blockchain 2.1.0

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-2026-3194 - Proof of Concept

References

https://vuldb.com/?id.347750
vdb-entrytechnical-description
https://vuldb.com/?ctiid.347750
signaturepermissions-required
https://vuldb.com/?submit.757201
third-party-advisory

CVSS V4

Score:
2
Severity:
LOW
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

DeSneake (VulDB User)
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