CVE-2026-46654

Vulnerability 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 Weaknesses (CWE)

CWE-345 CWE-1240

References

https://github.com/Plonky3/Plonky3/security/advisories/GHSA-vj64-rjf3-w3v7

FAQ

What is CVE-2026-46654?

CVE-2026-46654 is a documented vulnerability. 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, ...

How severe is CVE-2026-46654?

CVSS scoring is not yet available for CVE-2026-46654. Check NVD for updates.

Is there a patch for CVE-2026-46654?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.