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.
Metrics
Affected Vendors & Products
References
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 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: esaqa
Published: 2026-10-27T05:52:24.709Z
Updated: 2026-10-27T05:52:24.709Z
Reserved: 2026-10-27T05:33:18.001Z
Link: CVE-2026-117469
No data.
Status : Received
Published: 2026-10-27T06:17:24.683
Modified: 2026-10-27T06:17:24.683
Link: CVE-2026-117469
No data.