CVE-2026-117469 (GCVE-0-2026-117469)
Vulnerability from cvelistv5
Published
2026-10-27 05:52
Modified
2026-10-27 05:52
CWE
Summary
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.
Impacted products
Vendor Product Version
esaqa GmbH Psono Version: 1.0.0   ≤
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Show details on NVD website


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      "affected": [
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          "defaultStatus": "unaffected",
          "modules": [
            "Psono Server Community Edition",
            "Psono Server Enterprise Edition"
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          "product": "Psono",
          "programFiles": [
            "psono/restapi/serializers/file_repository_upload.py",
            "psono/restapi/serializers/file_repository_download.py"
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          "repo": "https://gitlab.com/esaqa/psono/psono-server",
          "vendor": "esaqa GmbH",
          "versions": [
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              "status": "affected",
              "version": "1.0.0",
              "versionType": "semver"
            }
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          "lang": "en",
          "type": "finder",
          "value": "Ryan Chaplin"
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      "datePublic": "2026-10-27T00:00:00.000Z",
      "descriptions": [
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              "value": "\u003cp\u003ePsono Server (CE \u0026amp; 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\u0027s file. Exploitation could upload or overwrite repository objects and consume storage, subject to transfer size, chunk-count, and lifetime limits.\u003c/p\u003e"
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        }
      ],
      "impacts": [
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          "descriptions": [
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              "lang": "en",
              "value": "A user with read-only file access could upload objects and append chunks in the file owner\u0027s external repository, affecting storage integrity and availability."
            }
          ]
        }
      ],
      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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              "description": "CWE-862 Missing Authorization",
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      "providerMetadata": {
        "dateUpdated": "2026-10-27T05:52:24.709Z",
        "orgId": "fdf66990-8419-4c8c-8848-ec15d75773b4",
        "shortName": "esaqa"
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          "tags": [
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        {
          "tags": [
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          "url": "https://gitlab.com/esaqa/psono/psono-server/-/commit/64753b19bd8d03cfbed20db575f4dccb220d9ca4"
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        {
          "tags": [
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          "url": "https://gitlab.com/esaqa/psono/psono-server/-/releases/v7.2.4"
        },
        {
          "tags": [
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          "url": "https://gitlab.com/esaqa/psono/psono-server"
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      "source": {
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      "timeline": [
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          "time": "2026-07-29T16:10:00.000Z",
          "value": "Vulnerability reported to vendor"
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          "lang": "en",
          "time": "2026-07-30T07:32:00.000Z",
          "value": "Vendor fix implemented"
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        {
          "lang": "en",
          "time": "2026-07-30T13:16:00.000Z",
          "value": "Psono Server CE \u0026 EE 7.2.4 released"
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      "title": "File-transfer type confusion permits unauthorized repository writes in Psono Server",
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    "datePublished": "2026-10-27T05:52:24.709Z",
    "dateReserved": "2026-10-27T05:33:18.001Z",
    "dateUpdated": "2026-10-27T05:52:24.709Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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