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CVE-2026-3194

Published: Feb 25, 2026

Modified: Feb 25, 2026

PUBLISHED

CVSS v3.1

4.5

MEDIUM

Description

A flaw has been found in Chia Blockchain 2.1.0. The affected element is the function send_transaction/get_private_key of the component RPC Server Master Passphrase Handler. This manipulation causes missing authentication. The attack can only be executed locally. The attack's complexity is rated as high. The exploitability is described as difficult. The exploit has been published and may be used. The vendor was informed early via email. A separate report via bugbounty was rejected with the reason "This is by design. The user is responsible for host security".

Vendor	Product	Versions
Chia	Blockchain	affected `2.1.0`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

References

VDB-347750 | Chia Blockchain RPC Server Master Passphrase get_private_key missing authentication

vdb-entry

technical-description

VDB-347750 | CTI Indicators (IOB, IOC, IOA)

signature

permissions-required

Submit #757201 | Chia Network Chia Blockchain Chia Blockchain 2.1.0 (confirmed vulnerable) Later versions (2.2.0 - 2.5.6) presumed vulnerable - no fix released Authentication Bypass/CSRF/Cryptographic Issue

third-party-advisory

https://github.com/Danimlzg/chia-rpc-auth-bypass.git

broken-link

exploit

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CVE-2026-3194 | MEDIUM (4.5) - Security Vulnerability | QwikSec