CVE-2026-46654
8.9
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
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Plonky3 | Plonky3 | < 0.4.3 | affected |
| Plonky3 | Plonky3 | >= 0.5.0, < 0.5.3 | affected |
Weaknesses
- CWE-1240: CWE-1240: Use of a Cryptographic Primitive with a Risky Implementation
- CWE-345: CWE-345: Insufficient Verification of Data Authenticity
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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