Vulnerability DatabaseCVE-2026-46654
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CVE-2026-46654
Published:June 10, 2026
Updated:June 11, 2026
Plonky3 is a toolkit for polynomial IOPs (PIOPs). Prior to versions 0.4.3 and 0.5.3, an attacker controlling prover-side observations can craft distinct transcripts that produce identical challenges, breaking the binding property of Fiat-Shamir. This issue has been patched in versions 0.4.3 and 0.5.3.
Affected Packages
p3-challenger (RUST):
Affected version(s) >=0.1.0 <0.4.3
Fix Suggestion:
Update to version 0.4.3
p3-challenger (RUST):
Affected version(s) >=0.5.0 <0.5.3
Fix Suggestion:
Update to version 0.5.3
Related Resources (3)
https://nvd.nist.gov/vuln/detail/CVE-2026-46654
https://github.com/Plonky3/Plonky3
https://github.com/Plonky3/Plonky3/security/advisories/GHSA-vj64-rjf3-w3v7
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CVSS v4
Base Score:
8.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
HIGH
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.8
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Use of a Cryptographic Primitive with a Risky Implementation
CWE-1240
Insufficient Verification of Data Authenticity
CWE-345
EPSS
Base Score:
0.01