CVE-2026-70657
Published:August 18, 2026
Updated:September 23, 2026
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 key into a directory key, granting read access to the containing folder. This vulnerability was only reachable if both types of keys (filekeys and dirkeys) were manually enabled in the volume flags simultaneously. This issue is fixed in version 1.20.17.
Affected Packages
copyparty (CONDA):
Affected version(s) >=1.18.5 <1.20.17Fix Suggestion:
Update to version 1.20.17https://github.com/9001/copyparty.git (GITHUB):
Affected version(s) >=v1.18.5 <v1.20.17Fix Suggestion:
Update to version v1.20.17copyparty (PYTHON):
Affected version(s) >=0.2.3 <1.20.17Fix Suggestion:
Update to version 1.20.17Related Resources (8)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Incorrect Authorization
EPSS
Base Score:
0.32