5.4
MediumCVSS 3.1 · from esaqa
CVE-2026-117469
File-transfer type confusion permits unauthorized repository writes in Psono Server
Psono · Missing authorization · CWE-862AffectedPsono
FixUpdate to 7.2.4 or newer
PublishedOct 27, 05:52 · esaqa
ScoredOct 27 · 5.4 · esaqa
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:10 UTC
What we know
No known exploitation. CISA KEV, checked 22:10 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker needs network access and an account. CVSS: network, low privileges.
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.
From esaqa
Affected and fixed versions
ProductAffectedFixed inPsono1.0.0 – before 7.2.47.2.4
Exploit code
Exploit-DBnone knownMetasploitnone knownNucleinone known