CVE-2026-46654

high

Published 2026-05-21 · Modified 2026-05-21

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

8.0

Description

Plonky3 MultiField32Challenger: transcript malleability and challenge entropy loss

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact

Ecosystem	Package	Vulnerable	Fixed
crates.io	p3-challenger	`<0.4.3`	`0.4.3`
crates.io	p3-challenger	`>=0.5.0,<0.5.3`	`0.5.3`
RUST	p3-challenger	`>= 0.5.0, < 0.5.3`	`0.5.3`
RUST	p3-challenger	`< 0.4.3`	`0.4.3`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.