{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-117469","assignerOrgId":"fdf66990-8419-4c8c-8848-ec15d75773b4","state":"PUBLISHED","assignerShortName":"esaqa","dateReserved":"2026-10-27T05:33:18.001Z","datePublished":"2026-10-27T05:52:24.709Z","dateUpdated":"2026-10-27T05:52:24.709Z"},"containers":{"cna":{"providerMetadata":{"orgId":"fdf66990-8419-4c8c-8848-ec15d75773b4","shortName":"esaqa","dateUpdated":"2026-10-27T05:52:24.709Z"},"title":"File-transfer type confusion permits unauthorized repository writes in Psono Server","datePublic":"2026-10-27T00:00:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-862","description":"CWE-862 Missing Authorization","type":"CWE"}]}],"impacts":[{"descriptions":[{"lang":"en","value":"A user with read-only file access could upload objects and append chunks in the file owner's external repository, affecting storage integrity and availability."}]}],"affected":[{"vendor":"esaqa GmbH","product":"Psono","repo":"https://gitlab.com/esaqa/psono/psono-server","modules":["Psono Server Community Edition","Psono Server Enterprise Edition"],"programFiles":["psono/restapi/serializers/file_repository_upload.py","psono/restapi/serializers/file_repository_download.py"],"versions":[{"status":"affected","version":"1.0.0","lessThan":"7.2.4","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"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.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>Psono Server (CE &amp; 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.</p>"}]}],"references":[{"url":"https://gitlab.com/esaqa/esaqa/security-advisories/-/blob/master/advisories/CVE-2026-117469.md","name":"Vendor security advisory for CVE-2026-117469","tags":["vendor-advisory"]},{"url":"https://gitlab.com/esaqa/psono/psono-server/-/blob/v7.2.3/psono/restapi/serializers/file_repository_upload.py","tags":["technical-description"]},{"url":"https://gitlab.com/esaqa/psono/psono-server/-/commit/64753b19bd8d03cfbed20db575f4dccb220d9ca4","tags":["patch"]},{"url":"https://gitlab.com/esaqa/psono/psono-server/-/releases/v7.2.4","tags":["release-notes"]},{"url":"https://gitlab.com/esaqa/psono/psono-server","tags":["product"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW","baseSeverity":"MEDIUM","baseScore":5.4,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L"}}],"solutions":[{"lang":"en","value":"Upgrade to Psono Server 7.2.4 or later.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>Upgrade to Psono Server 7.2.4 or later.</p>"}]}],"timeline":[{"time":"2026-07-29T16:10:00.000Z","lang":"en","value":"Vulnerability reported to vendor"},{"time":"2026-07-30T07:32:00.000Z","lang":"en","value":"Vendor fix implemented"},{"time":"2026-07-30T13:16:00.000Z","lang":"en","value":"Psono Server CE & EE 7.2.4 released"}],"credits":[{"lang":"en","value":"Ryan Chaplin","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}}}}