FKIE_CVE-2026-41180

Vulnerability from fkie_nvd - Published: 2026-04-23 02:16 - Updated: 2026-04-24 14:50
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
PsiTransfer is an open source, self-hosted file sharing solution. Prior to version 2.4.3, the upload PATCH flow under `/files/:uploadId` validates the mounted request path using the still-encoded `req.path`, but the downstream tus handler later writes using the decoded `req.params.uploadId`. In deployments that use a supported custom `PSITRANSFER_UPLOAD_DIR` whose basename prefixes a startup-loaded JavaScript path, such as `conf`, an unauthenticated attacker can create `config.<NODE_ENV>.js` in the application root. The attacker-controlled file is then executed on the next process restart. Version 2.4.3 contains a patch.
References
security-advisories@github.comhttps://github.com/psi-4ward/psitransfer/commit/8b547bf3e09757122efa00aab90281e3915aa0c6
security-advisories@github.comhttps://github.com/psi-4ward/psitransfer/releases/tag/v2.4.3
security-advisories@github.comhttps://github.com/psi-4ward/psitransfer/security/advisories/GHSA-533q-w4g6-5586
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/psi-4ward/psitransfer/security/advisories/GHSA-533q-w4g6-5586
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "PsiTransfer is an open source, self-hosted file sharing solution. Prior to version 2.4.3, the upload PATCH flow under `/files/:uploadId` validates the mounted request path using the still-encoded `req.path`, but the downstream tus handler later writes using the decoded `req.params.uploadId`. In deployments that use a supported custom `PSITRANSFER_UPLOAD_DIR` whose basename prefixes a startup-loaded JavaScript path, such as `conf`, an unauthenticated attacker can create `config.\u003cNODE_ENV\u003e.js` in the application root. The attacker-controlled file is then executed on the next process restart. Version 2.4.3 contains a patch."
    }
  ],
  "id": "CVE-2026-41180",
  "lastModified": "2026-04-24T14:50:56.203",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.9,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-04-23T02:16:15.977",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/psi-4ward/psitransfer/commit/8b547bf3e09757122efa00aab90281e3915aa0c6"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/psi-4ward/psitransfer/releases/tag/v2.4.3"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/psi-4ward/psitransfer/security/advisories/GHSA-533q-w4g6-5586"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/psi-4ward/psitransfer/security/advisories/GHSA-533q-w4g6-5586"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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