CVE-2026-49453 Joplin - Path Traversal

Joplin < 3.6.15 and < 3.7.2 contains a path traversal caused by unvalidated resource metadata in synchronized resources, letting attackers with write access to sync targets overwrite files at arbitrary paths without user interaction.

CVSS base score 7.0 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.41% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Path Traversal
Impact
File System Write
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L
Published
21 September 2026
Updated
15 October 2026
Weakness
CWE-20

Vendor fix

Update to versions 3.6.15 or 3.7.2 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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