# Microsoft Common Data Model SDK Denial of Service Vulnerability

Advisory record · `GHSA-vm2m-7hpw-fpmq`

- **Identifiers:** `GHSA-vm2m-7hpw-fpmq` · `CVE-2023-36566` · `PYSEC-2026-1261`
- **State:** Confirmed
- **Severity:** CVSS 6.5 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-20](https://cwe.mitre.org/data/definitions/20.html)
- **Tags:** [CWE-20](https://agentprime.io/advisories/tag/cwe-20.md)
- **Published:** 10 Oct 2023
- **Updated:** 7 Jul 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 10 Oct 2023, 18:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `Microsoft.CommonDataModel.ObjectModel` (NuGet): affected `<1.7.4`; fixed in `1.7.4`
- `com.microsoft.commondatamodel:objectmodel` (Maven): affected `<1.7.4`; fixed in `1.7.4`
- `commondatamodel-objectmodel` (PyPI): affected `<1.7.4`; fixed in `1.7.4`

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> The Microsoft Common Data Model SDK packages Microsoft.CommonDataModel.ObjectModel (NuGet), com.microsoft.commondatamodel:objectmodel (Maven), and commondatamodel-objectmodel (PyPI) are affected in versions before 1.7.4. The source gives few details beyond describing a denial of service vulnerability. Upgrade to version 1.7.4.

Written 2 Nov 2026.

## 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

- 6.5 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C`, from CNA (microsoft)

- **CISA KEV:** Not listed.
- **EPSS:** 0.030, the 87th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:20 UTC: First seen by agentprime
- 31 Oct 2026, 14:20 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-vm2m-7hpw-fpmq)

## Sources

- [GitHub Advisory Database: GHSA-vm2m-7hpw-fpmq](https://github.com/advisories/GHSA-vm2m-7hpw-fpmq)
- [OSV: GHSA-vm2m-7hpw-fpmq](https://osv.dev/vulnerability/GHSA-vm2m-7hpw-fpmq)
- <https://nvd.nist.gov/vuln/detail/CVE-2023-36566>
- <https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36566>

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-vm2m-7hpw-fpmq>, 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-vm2m-7hpw-fpmq/>. Everything for agents: <https://agentprime.io/llms.txt>.