CVE-2026-46654
Plonky3 MultiField32Challenger: transcript malleability and challenge entropy loss
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.
INFO
Published Date :
June 10, 2026, 8:06 p.m.
Last Modified :
June 10, 2026, 8:06 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Affected Products
The following products are affected by CVE-2026-46654
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update Plonky3 to version 0.4.3 or 0.5.3.
- Verify the integrity of the update.
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The following list is the news that have been mention
CVE-2026-46654 vulnerability anywhere in the article.