FKIE_CVE-2026-49450

Vulnerability from fkie_nvd - Published: 2026-09-21 21:17 - Updated: 2026-09-21 21:17
Severity
7.1 (High) - CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.2, Joplin Desktop for Windows omits publisherName from packages/app-desktop/package.json, so the generated app-update.yml causes NsisUpdater.verifySignature() to skip comparison of a downloaded update's Authenticode signer with Joplin's signer. An attacker who controls the update delivery path can replace the update metadata and installer, and the client accepts an installer signed by another publisher or left unsigned after the user approves installation. Successful exploitation runs attacker-controlled code with the user's privileges and can compromise notes, credentials, and local data. This issue is fixed in version 3.7.2.
References
security-advisories@github.comhttps://github.com/laurent22/joplin/commit/853659edf575c4f526c2b196e0629462aee9df28
security-advisories@github.comhttps://github.com/laurent22/joplin/pull/15539
security-advisories@github.comhttps://github.com/laurent22/joplin/security/advisories/GHSA-9wp7-hr9m-3273
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "joplin",
          "vendor": "laurent22",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.7.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.2, Joplin Desktop for Windows omits publisherName from packages/app-desktop/package.json, so the generated app-update.yml causes NsisUpdater.verifySignature() to skip comparison of a downloaded update\u0027s Authenticode signer with Joplin\u0027s signer. An attacker who controls the update delivery path can replace the update metadata and installer, and the client accepts an installer signed by another publisher or left unsigned after the user approves installation. Successful exploitation runs attacker-controlled code with the user\u0027s privileges and can compromise notes, credentials, and local data. This issue is fixed in version 3.7.2."
    }
  ],
  "id": "CVE-2026-49450",
  "lastModified": "2026-09-21T21:17:03.747",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 5.9,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-09-21T21:17:03.747",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/laurent22/joplin/commit/853659edf575c4f526c2b196e0629462aee9df28"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/laurent22/joplin/pull/15539"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/laurent22/joplin/security/advisories/GHSA-9wp7-hr9m-3273"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-345"
        },
        {
          "lang": "en",
          "value": "CWE-353"
        },
        {
          "lang": "en",
          "value": "CWE-494"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}



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