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🟠 Copyparty, Limited Path Traversal, #CVE-2026-104102 (Medium) -DC-Oct2026-3261 https://dailycve.com/copyparty-limited-path-traversal-cve-2026-104102-medium-dc-oct2026-3261/
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CVE-2026-104102
LOWCVSS 5.3 · MEDIUMSignal is active with 1 mentions in latest observed window
Immediate actions
- Track advisory updates for patch or workaround availability
Recommended action window: Monitor and triage in normal cycle
NVD description
copyparty is a portable file server. Prior to 1.20.19, FTP upload path handling does not confine destinations to configured copyparty volumes. When FTP or FTPS is explicitly enabled, a low-privileged authenticated user can submit traversal paths during upload to create a new file outside configured volumes wherever the copyparty process has write permission. The attacker cannot read or overwrite files, the output name receives a randomized suffix, and copyparty does not execute the file; however, unrelated software on the same host could process the newly created file. This issue is fixed in version 1.20.19.
0.0/ 10 priority
Sources & remediation
Other references
- https://github.com/9001/copyparty/commit/b331bb1c8c8cc306b91e4d94221969335a7a3e86
- https://github.com/9001/copyparty/releases/tag/v1.20.19
- https://github.com/9001/copyparty/security/advisories/GHSA-phv8-wgjp-g4p9
- https://github.com/9001/copyparty/security/advisories/GHSA-phv8-wgjp-g4p9
- https://github.com/9001/copyparty/security/advisories/GHSA-phv8-wgjp-g4p9
Weakness type (CWE)
CWE-22
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
Threat summary
- 1 mentions across 1 observed day
What's happening
- 1 total mentions across 1 day