CVEvulnerability

CVE-2026-46654

8.9 HIGH Published 2026-06-10 Modified 2026-07-23 Official page ↗
Status
Deferred
Published
2026-06-10
Last modified
2026-07-23
Assigner
[email protected]
CVSS 4.0 ([email protected])
8.9 HIGH — 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
Weaknesses
CWE-1240, CWE-345

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.

Related

Weakness · CWE (2)

  • CWE-1240 Use of a Cryptographic Primitive with a Risky Implementation weakness
  • CWE-345 Insufficient Verification of Data Authenticity weakness

References