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VulnerabilityPublished Updated

CVE-2026-22810: laurent22 joplin · Path Traversal: '../filedir

Affects laurent22 joplinSource CVE Database V5

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Not known to be exploited · CVSS 8.2 High : upgrade to 3.5.7 soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
8.2High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.5.7
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade joplin and laurent22/joplin to 3.5.7.

Affected software

ProductAffectedFixed in
laurent22joplinAffected
  • <3.5.7
Fixed in
  • 3.5.7
GitHublaurent22/joplinpkg:github/laurent22/joplinOther threatsAffected
  • <3.5.7
Fixed in
  • 3.5.7

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available in Joplin version 3.5.7. Users and administrators should upgrade to version 3.5.7 or later to remediate this vulnerability. Since this is not a cloud service, patching the client application is required. There is no vendor advisory content explicitly stating otherwise. Until upgraded, avoid importing untrusted OneNote (.one) files to mitigate risk.

Description

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Versions prior to 3.5.7 contain a path traversal vulnerability in the importer which allows overwriting arbitrary files on disk. The OneNote converter does not sanitize the names of embedded files before writing them to disk. As a result, it's possible for an attacker to create a malicious .one file that includes file names containing ../../, that are then interpreted as part of the target path when extracting attachments from the .one file. This issue has been patched in version 3.5.7.

References

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