CVE-2026-70657

Summary

Copyparty vulnerable to file/dirkey confusion

Severity

medium

CVSS

4.3

EPSS

0.3% (p26)

CWE

CWE-863

Also known as

GHSA-x5pq-m9p8-f4vx

Published

2026-08-18

Updated

2026-08-18

Advisory details

A valid filekey could potentially be converted into a dirkey, granting read-access to the containing folder.

This issue only affected volumes which simultaneously enable both filekeys and dirkeys, with volflag dk or dks combined with fk or fka.

Both required features are default-disabled, and must be explicitly enabled in the volflags (the "flags" section of a volume).

References

• https://github.com/advisories/GHSA-x5pq-m9p8-f4vx
• https://github.com/9001/copyparty/security/advisories/GHSA-x5pq-m9p8-f4vx
• https://github.com/9001/copyparty/commit/e40755331ba9449993ff482456e6bdd2c6deb950
• https://github.com/9001/copyparty/releases/tag/v1.20.17

Related advisories

• CVE-2026-104102 — medium · PyPI/copyparty
• GHSA-cxf3-9h37-7rr8#github.com/labstack/echo/v5 — critical · Go/github.com/labstack/echo/v5
• GHSA-cxf3-9h37-7rr8#github.com/labstack/echo/v4 — critical · Go/github.com/labstack/echo/v4
• CVE-2026-77366 — critical · npm/obsidian-tc
• CVE-2026-77459 — critical · Go/github.com/argoproj/argo-cd/v2
• CVE-2026-68582 — critical · Go/code.vikunja.io/api
• CVE-2026-105851 — critical · npm/payload
• CVE-2026-100721 — critical · npm/vm2

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