---
cve: "CVE-2026-46649"
severity: "CRITICAL"
cvss: 9.1
epss: "0.4%"
vendor: "laurent22"
kev: false
exploited: false
published: "2026-09-21 21:17:03"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-23T15:10:01+02:00"
---

# CVE-2026-46649

> 9.1 CRITICAL · 🧪 PoC

## Beschreibung

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.2, Joplin Server's GET /api/login_with_code/:id endpoint accepts a nine-digit SSO authentication code with a ten-minute lifetime without applying limiterLoginBruteForce. An unauthenticated attacker who targets a user during an active SSO login can make unlimited guesses, and a correct code returns a full session token that permits access to and modification of the user's notes, notebooks, and account settings. This issue is fixed in version 3.7.2.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- fd8c1fb53f98f689e846dc164e39f307f09b684d (Commit)

## Referenzen

- <https://github.com/laurent22/joplin/security/advisories/GHSA-6vwc-4hrg-qp5h>
- <https://github.com/laurent22/joplin/pull/15433>
- <https://github.com/laurent22/joplin/commit/fd8c1fb53f98f689e846dc164e39f307f09b684d>
- <https://github.com/laurent22/joplin/tree/v3.7.2>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-46649) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_