Vulnerability-Lookup

GHSA-JG7J-Q6M4-7GQ5

Vulnerability from github – Published: 2026-10-27 06:31 – Updated: 2026-10-27 06:31

Details

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.

Severity

5.4 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

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{
  "affected": [],
  "aliases": [
    "CVE-2026-117469"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-27T06:17:24Z",
    "severity": "MODERATE"
  },
  "details": "Psono Server (CE \u0026 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.",
  "id": "GHSA-jg7j-q6m4-7gq5",
  "modified": "2026-10-27T06:31:23Z",
  "published": "2026-10-27T06:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-117469"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/esaqa/esaqa/security-advisories/-/blob/master/advisories/CVE-2026-117469.md"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/esaqa/psono/psono-server"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/esaqa/psono/psono-server/-/blob/v7.2.3/psono/restapi/serializers/file_repository_upload.py"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/esaqa/psono/psono-server/-/commit/64753b19bd8d03cfbed20db575f4dccb220d9ca4"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/esaqa/psono/psono-server/-/releases/v7.2.4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-117469 (GCVE-0-2026-117469)

Vulnerability from cvelistv5 – Published: 2026-10-27 05:52 – Updated: 2026-10-27 05:52

Title

File-transfer type confusion permits unauthorized repository writes in Psono Server

Summary

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

CWE

CWE-862 - Missing Authorization

Assigner

esaqa CNA under the ENISA root

CNA scorecard – unranked: 5 records in the last 180 days, 10 needed details

References

5 references

URL	Tags
https://gitlab.com/esaqa/esaqa/security-advisorie…	vendor-advisory
https://gitlab.com/esaqa/psono/psono-server/-/blo…	technical-description
https://gitlab.com/esaqa/psono/psono-server/-/com…	patch
https://gitlab.com/esaqa/psono/psono-server/-/rel…	release-notes
https://gitlab.com/esaqa/psono/psono-server	product

Impacted products

1 product

Vendor	Product	Version
esaqa GmbH	Psono	Affected: 1.0.0 , < 7.2.4 (semver)

Date Public

2026-10-27 00:00

Credits

Ryan Chaplin

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "Psono Server Community Edition",
            "Psono Server Enterprise Edition"
          ],
          "product": "Psono",
          "programFiles": [
            "psono/restapi/serializers/file_repository_upload.py",
            "psono/restapi/serializers/file_repository_download.py"
          ],
          "repo": "https://gitlab.com/esaqa/psono/psono-server",
          "vendor": "esaqa GmbH",
          "versions": [
            {
              "lessThan": "7.2.4",
              "status": "affected",
              "version": "1.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Ryan Chaplin"
        }
      ],
      "datePublic": "2026-10-27T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "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"
            }
          ],
          "value": "Psono Server (CE \u0026 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."
        }
      ],
      "impacts": [
        {
          "descriptions": [
            {
              "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": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
            "version": "3.1"
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          "scenarios": [
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          "descriptions": [
            {
              "cweId": "CWE-862",
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            }
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-27T05:52:24.709Z",
        "orgId": "fdf66990-8419-4c8c-8848-ec15d75773b4",
        "shortName": "esaqa"
      },
      "references": [
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          "name": "Vendor security advisory for CVE-2026-117469",
          "tags": [
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        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://gitlab.com/esaqa/psono/psono-server/-/commit/64753b19bd8d03cfbed20db575f4dccb220d9ca4"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://gitlab.com/esaqa/psono/psono-server/-/releases/v7.2.4"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://gitlab.com/esaqa/psono/psono-server"
        }
      ],
      "solutions": [
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          "lang": "en",
          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
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            }
          ],
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        }
      ],
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      },
      "timeline": [
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          "lang": "en",
          "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"
        },
        {
          "lang": "en",
          "time": "2026-07-30T13:16:00.000Z",
          "value": "Psono Server CE \u0026 EE 7.2.4 released"
        }
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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"
  },
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  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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