# in-toto-golang and in-toto-python have inconsistent negation behavior

Advisory record · `GHSA-pmwq-pjrm-6p5r`

- **Identifiers:** `GHSA-pmwq-pjrm-6p5r` · `GO-2026-5547`
- **State:** Confirmed
- **Severity:** CVSS 4.1 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-168](https://cwe.mitre.org/data/definitions/168.html)
- **Tags:** [CWE-168](https://agentprime.io/advisories/tag/cwe-168.md)
- **Published:** 8 May 2026
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 8 May 2026, 22:24 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `github.com/in-toto/in-toto-golang` (Go): affected `<0.11.0`; fixed in `0.11.0`

## 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

- 4.1 Medium, CVSS 3.1: `CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** No score.

## Timeline

- 31 Oct 2026, 14:13 UTC: First seen by agentprime
- 31 Oct 2026, 14:13 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-pmwq-pjrm-6p5r)

## Sources

- [GitHub Advisory Database: GHSA-pmwq-pjrm-6p5r](https://github.com/advisories/GHSA-pmwq-pjrm-6p5r)
- [OSV: GHSA-pmwq-pjrm-6p5r](https://osv.dev/vulnerability/GHSA-pmwq-pjrm-6p5r)
- <https://github.com/in-toto/in-toto-golang/security/advisories/GHSA-pmwq-pjrm-6p5r>
- <https://github.com/in-toto/in-toto-golang/pull/462>
- <https://github.com/in-toto/in-toto-golang/commit/36d782ffb2ca3adbffcdce1fd971c23319dd4469>
- <https://github.com/in-toto/in-toto-golang>

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-pmwq-pjrm-6p5r>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

---

The web page: <https://agentprime.io/advisories/GHSA-pmwq-pjrm-6p5r/>. Everything for agents: <https://agentprime.io/llms.txt>.