CVE-2026-117468

Full vulnerability record from the local CVENow database.

Description

Psono Server versions 5.3.5 through 7.2.3 used a permission class that did not enforce token write scope when claiming a device code. An authenticated remote attacker holding a restricted API key-derived session could claim an attacker-controlled device code and obtain a full read-write session valid for up to 365 days, bypassing the original token's scope and lifetime restrictions. This did not bypass two-factor authentication or directly disclose plaintext secrets.

Severity

MEDIUM

CVSS score

6.5 (v3.1)

Vulnerability status

Deferred

Source identifier

fdf66990-8419-4c8c-8848-ec15d75773b4

Published

2026-10-27 06:17:24.527000

Last modified

2026-10-27 15:00:49.240000

View original CVE JSON

{
  "id": "CVE-2026-117468",
  "sourceIdentifier": "fdf66990-8419-4c8c-8848-ec15d75773b4",
  "published": "2026-10-27T06:17:24.527",
  "lastModified": "2026-10-27T15:00:49.240",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Psono Server versions 5.3.5 through 7.2.3 used a permission class that did not enforce token write scope when claiming a device code. An authenticated remote attacker holding a restricted API key-derived session could claim an attacker-controlled device code and obtain a full read-write session valid for up to 365 days, bypassing the original token's scope and lifetime restrictions. This did not bypass two-factor authentication or directly disclose plaintext secrets."
    }
  ],
  "affected": [
    {
      "source": "fdf66990-8419-4c8c-8848-ec15d75773b4",
      "affectedData": [
        {
          "vendor": "esaqa GmbH",
          "product": "Psono",
          "defaultStatus": "unaffected",
          "modules": [
            "Psono Server Community Edition",
            "Psono Server Enterprise Edition"
          ],
          "programFiles": [
            "psono/restapi/views/device_code_claim.py",
            "psono/restapi/views/device_code_token.py"
          ],
          "repo": "https://gitlab.com/esaqa/psono/psono-server",
          "versions": [
            {
              "version": "5.3.5",
              "lessThan": "7.2.4",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "fdf66990-8419-4c8c-8848-ec15d75773b4",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "fdf66990-8419-4c8c-8848-ec15d75773b4",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://gitlab.com/esaqa/esaqa/security-advisories/-/blob/master/advisories/CVE-2026-117468.md",
      "source": "fdf66990-8419-4c8c-8848-ec15d75773b4"
    },
    {
      "url": "https://gitlab.com/esaqa/psono/psono-server",
      "source": "fdf66990-8419-4c8c-8848-ec15d75773b4"
    },
    {
      "url": "https://gitlab.com/esaqa/psono/psono-server/-/blob/v7.2.3/psono/restapi/views/device_code_claim.py",
      "source": "fdf66990-8419-4c8c-8848-ec15d75773b4"
    },
    {
      "url": "https://gitlab.com/esaqa/psono/psono-server/-/commit/19ed5a192c704fece1645d946b6f4c36045bacbe",
      "source": "fdf66990-8419-4c8c-8848-ec15d75773b4"
    },
    {
      "url": "https://gitlab.com/esaqa/psono/psono-server/-/releases/v7.2.4",
      "source": "fdf66990-8419-4c8c-8848-ec15d75773b4"
    }
  ]
}