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TI-2025-18519 Aliases CVE-2025-24802GHSA-hj49-h7fq-px5h

Soundness issue with Plonky2 look up tables

Priority MEDIUM 43CWE-1240Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

Plonky2 is a SNARK implementation based on techniques from PLONK and FRI. Lookup tables, whose length is not divisible by 26 = floor(num_routed_wires / 3) always include the 0 -> 0 input-output pair. Thus a malicious prover can always prove that f(0) = 0 for any lookup table f (unless its length happens to be divisible by 26). The cause of problem is that the LookupTableGate-s are padded with zeros. A workaround from the user side is to extend the table (by repeating some entries) so that its length becomes divisible by 26. This vulnerability is fixed in 1.0.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00329 26th percentileScored 2026-11-07
Fix Fixed plonky2 (crates.io): 1.0.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
0xPolygonZeroplonky2= 1.0.0—No fix listedCNA
—plonky2 (crates.io)1.0.0 to before 1.0.11.0.1Patch availableGHSA-hj49-h7fq-px5h
  • plonky2 Vendor0xPolygonZero Affected = 1.0.0 Fixed in — No fix listed CNA
  • plonky2 (crates.io) Vendor— Affected 1.0.0 to before 1.0.1 Fixed in 1.0.1 Patch available GHSA-hj49-h7fq-px5h

Remediation

  • Fix · GHSA-hj49-h7fq-px5h plonky2 (crates.io) Fixed in 1.0.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-24802
  2. 2026-10-03 Alias added: GHSA-hj49-h7fq-px5h

References

Advisory 1

Other 4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences