# gnark unsoundness in variable comparison / non-unique binary decomposition

Advisory record · `GHSA-498w-5j49-vqjg`

- **Identifiers:** `GHSA-498w-5j49-vqjg` · `CVE-2023-44378` · `GO-2023-2098`
- **State:** Confirmed
- **Severity:** CVSS 7.1 High
- **Critical:** No
- **Weakness (CWE):** [CWE-191](https://cwe.mitre.org/data/definitions/191.html) · [CWE-697](https://cwe.mitre.org/data/definitions/697.html)
- **Tags:** [Memory corruption](https://agentprime.io/advisories/tag/memory-corruption.md) · [CWE-697](https://agentprime.io/advisories/tag/cwe-697.md)
- **Published:** 4 Oct 2023
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 4 Oct 2023, 14:44 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `github.com/consensys/gnark` (Go): affected `<0.9.0`; fixed in `0.9.0`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 7.1 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0023, the 14th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:44 UTC: First seen by agentprime
- 31 Oct 2026, 14:44 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-498w-5j49-vqjg)

## Sources

- [GitHub Advisory Database: GHSA-498w-5j49-vqjg](https://github.com/advisories/GHSA-498w-5j49-vqjg)
- [OSV: GHSA-498w-5j49-vqjg](https://osv.dev/vulnerability/GHSA-498w-5j49-vqjg)
- <https://github.com/Consensys/gnark/security/advisories/GHSA-498w-5j49-vqjg>
- <https://nvd.nist.gov/vuln/detail/CVE-2023-44378>
- <https://github.com/zkopru-network/zkopru/issues/116>
- <https://github.com/Consensys/gnark/pull/835>
- <https://github.com/Consensys/gnark/commit/59a4087261a6c73f13e80d695c17b398c3d0934f>
- <https://github.com/Consensys/gnark>
- <https://github.com/advisories/GHSA-498w-5j49-vqjg>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-498w-5j49-vqjg>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-498w-5j49-vqjg/>. Everything for agents: <https://agentprime.io/llms.txt>.