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TI-2026-02759 Aliases CVE-2026-3194GHSA-rqc2-5fv7-4vrp

Chia Blockchain RPC Server Master Passphrase get_private_key missing authentication

Priority MEDIUM 44CWE-287Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

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".

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00267 18th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ChiaBlockchain2.1.0—No fix listedCNA
  • Blockchain VendorChia Affected 2.1.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:chia:blockchain:2.1.0:*:*:*:*:*:*:*2.1.0VulnerableChia
  • cpe:2.3:a:chia:blockchain:2.1.0:*:*:*:*:*:*:* Versions 2.1.0 Vulnerable ·Chia

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-3194
  2. 2026-10-03 Alias added: GHSA-rqc2-5fv7-4vrp

References

Exploit 1

  • TI-2026-02757 Chia Blockchain RPC Credential rpc_server_base.py _authenticate improper authentication CVSS 4.0MEDIUM 6.3
  • TI-2026-02758 Chia Blockchain send_transaction cross-site request forgery CVSS 4.0LOW 2.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences