CVE-2025-24802
Soundness issue with Plonky2 look up tables
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N |
| NVDNVD · Deferred | 3.1 | High8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.33% · top 74% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.6.
Weakness
Affected products
- affected = 1.0.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- crates.ioplonky2GHSA-hj49-h7fq-px5h (opens in a new tab)
References (3)
- https://github.com/0xPolygonZero/plonky2/security/advisories/GHSA-hj49-h7fq-px5h (opens in a new tab)x_refsource_CONFIRM
- https://github.com/0xPolygonZero/plonky2/commit/091047f7f10cae082716f3738ad59a583835f7b6 (opens in a new tab)x_refsource_MISC
- https://github.com/0xPolygonZero/plonky2/blob/main/plonky2/src/plonk/prover.rs#L97 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-hj49-h7fq-px5h (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2025-24802)Record last updated .