Copyparty vulnerable to file/dirkey confusion
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).
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-70657US | —OT elevated | — | ||
Copyparty is a portable file server. Prior to 1.20.17, copyparty volumes with the dk or dks directory-key flag combined with the fk or fka file-key flag can convert a valid file ke… | ||||
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references
External citations — patches, advisories, analysis.
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