CVE-2026-46654
HIGH EPSS 1.5%
Published Jun 10, 20263w ago · Modified Jun 17, 20262w ago
8.9 CVSS 4.0
Published Jun 10, 2026 3w ago
Last Modified Jun 17, 2026 2w ago
Description
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
1.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 2
CWE-1240
CWE-345
References 1
- github.com https://github.com/Plonky3/Plonky3/security/advisories/GHSA-vj64-rjf3-w3v7
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.