# Skops may allow MethodNode to access unexpected object fields through dot notation, leading to arbitrary code execution at load time

Advisory record · `GHSA-4v6w-xpmh-gfgp`

- **Identifiers:** `GHSA-4v6w-xpmh-gfgp` · `CVE-2025-54413` · `PYSEC-2026-1926`
- **State:** Confirmed
- **Severity:** CVSS 8.7 High
- **Critical:** No
- **Weakness (CWE):** [CWE-351](https://cwe.mitre.org/data/definitions/351.html)
- **Tags:** [CWE-351](https://agentprime.io/advisories/tag/cwe-351.md)
- **Published:** 25 Jul 2025
- **Updated:** 7 Jul 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 25 Jul 2025, 19:21 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `skops` (PyPI): affected `<0.12.0`; fixed in `0.12.0`

## 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

- 8.7 High, CVSS 4.0: `CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0016, the 5th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 25 Jul 2025. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-4v6w-xpmh-gfgp](https://github.com/advisories/GHSA-4v6w-xpmh-gfgp)
- [OSV: GHSA-4v6w-xpmh-gfgp](https://osv.dev/vulnerability/GHSA-4v6w-xpmh-gfgp)
- <https://github.com/skops-dev/skops/security/advisories/GHSA-4v6w-xpmh-gfgp>
- <https://github.com/skops-dev/skops/security/advisories/GHSA-m7f4-hrc6-fwg3>
- <https://nvd.nist.gov/vuln/detail/CVE-2025-54413>
- <https://github.com/skops-dev/skops/commit/0aeca055509dfb48c1506870aabdd9e247adf603>
- <https://drive.google.com/drive/folders/1bmVV18mnPbWy21hVYgf51yVJpf78vtB_?usp=sharing>
- <https://github.com/io-no/CVE-Reports/tree/main/CVE-2025-54413>
- <https://github.com/skops-dev/skops>
- <https://github.com/skops-dev/skops/releases/tag/v0.12.0>

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-4v6w-xpmh-gfgp>, 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-4v6w-xpmh-gfgp/>. Everything for agents: <https://agentprime.io/llms.txt>.