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.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46654.json",
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-1240",
"CWE-345"
]
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "0.4.3"
},
{
"introduced": "0.5.0"
},
{
"fixed": "0.5.3"
}
],
"source": "AFFECTED_FIELD"
}