Psono Server (CE & EE) versions 1.0.0 through 7.2.3 did not enforce the direction of file-transfer credentials on file-repository operations. An authenticated remote attacker with read-only access to a file could present a download transfer to the upload endpoint, obtain a signed upload URL for an attacker-selected object key, and append a chunk to the owner's file. Exploitation could upload or overwrite repository objects and consume storage, subject to transfer size, chunk-count, and lifetime limits.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

Upgrade to Psono Server 7.2.4 or later.


Workaround

No workaround given by the vendor.

History

Tue, 27 Oct 2026 06:00:00 +0000

Type Values Removed Values Added
Description Psono Server (CE & EE) versions 1.0.0 through 7.2.3 did not enforce the direction of file-transfer credentials on file-repository operations. An authenticated remote attacker with read-only access to a file could present a download transfer to the upload endpoint, obtain a signed upload URL for an attacker-selected object key, and append a chunk to the owner's file. Exploitation could upload or overwrite repository objects and consume storage, subject to transfer size, chunk-count, and lifetime limits.
Title File-transfer type confusion permits unauthorized repository writes in Psono Server
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: esaqa

Published:

Updated: 2026-10-27T05:52:24.709Z

Reserved: 2026-10-27T05:33:18.001Z

Link: CVE-2026-117469

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-27T06:17:24.683

Modified: 2026-10-27T06:17:24.683

Link: CVE-2026-117469

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses