{"id":"CVE-2026-49450","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-49450","generatedAt":"2026-10-28T08:10:59.308Z","title":"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.","description":"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.","published":"2026-09-21T21:17:04.000Z","lastModified":"2026-09-23T18:30:43.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-345","CWE-353","CWE-494"],"affected":[],"epss":{"score":0.00182,"percentile":0.07681,"date":"2026-10-27","history":[{"date":"2026-09-22","score":0.00127,"percentile":0.02726}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-21T21:17:04.000Z","detail":{"score":"7.1","severity":"HIGH","publishedAt":"2026-09-21T21:17:03.747Z"},"summary":"New CVE, high severity (CVSS 7.1)."}],"references":[{"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","source":"security-advisories@github.com"},{"url":"https://github.com/laurent22/joplin/security/advisories/GHSA-9wp7-hr9m-3273","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-49450","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}