CVE-2026-117469 File-transfer type confusion permits unauthorized repository writes in Psono Server
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-117469?
CVE-2026-117469 is a medium-severity vulnerability in esaqa GmbH Psono, published on 27 Oct 2026.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-117469?
How do I fix CVE-2026-117469?
No fix has been published for CVE-2026-117469 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-117469 being exploited?
There is no known exploitation of CVE-2026-117469 in the wild and no public exploit code.
Sources
Also known as GHSA-jg7j-q6m4-7gq5.