# OpenStack Keystone has an Incorrect Authorization Issue

Advisory record · `GHSA-hhq2-3832-xxcv`

- **Identifiers:** `GHSA-hhq2-3832-xxcv` · `CVE-2026-43001` · `PYSEC-2026-602`
- **State:** Confirmed
- **Severity:** CVSS 7.9 High
- **Critical:** No
- **Weakness (CWE):** [CWE-863](https://cwe.mitre.org/data/definitions/863.html) · [CWE-1288](https://cwe.mitre.org/data/definitions/1288.html)
- **Tags:** [Broken access control](https://agentprime.io/advisories/tag/access-control.md) · [CWE-1288](https://agentprime.io/advisories/tag/cwe-1288.md)
- **Published:** 1 May 2026
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 1 May 2026, 09:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `keystone` (PyPI): affected `>=13.0.0, <=29.0.1`; no fixed version yet

## Machine-written summary

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

> OpenStack Keystone versions 13.0.0 through 29.0.1 are affected. An attacker holding an unrestricted application credential for one project can create an EC2-type credential for a different project, because the request is not checked against the project of the authenticating credential. The attacker can then obtain a token scoped to the other project and move across projects within the original credential owner's roles. The source lists no fixed version and no workaround.

Written 1 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0047, the 40th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:11 UTC: First seen by agentprime
- 31 Oct 2026, 14:11 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-hhq2-3832-xxcv)

## Sources

- [GitHub Advisory Database: GHSA-hhq2-3832-xxcv](https://github.com/advisories/GHSA-hhq2-3832-xxcv)
- [OSV: GHSA-hhq2-3832-xxcv](https://osv.dev/vulnerability/GHSA-hhq2-3832-xxcv)
- <https://nvd.nist.gov/vuln/detail/CVE-2026-43001>
- <https://bugs.launchpad.net/keystone/+bug/2149775>
- <https://review.opendev.org/c/openstack/keystone>
- <https://review.opendev.org/c/openstack/keystone/+/985804>
- <https://security.openstack.org/ossa/OSSA-2026-015.html>

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-hhq2-3832-xxcv>, 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-hhq2-3832-xxcv/>. Everything for agents: <https://agentprime.io/llms.txt>.