What is CVE-2026-34600?

CVE-2026-34600 is a medium-severity vulnerability in Laurent22 Joplin, classified under Information Disclosure. CVSS score: 5.7/10. Published 2026-05-19.

How severe is CVE-2026-34600?

Medium severity. CVSS v3 base score is 5.7 out of 10.

Auth bypass in Laurent22 Joplin

CVE-2026-34600

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Versions 3.5.2 and prior contain a logic error in the delta API that allows share recipients to download notes that are no longer sha…

Vulnerability class: Information Disclosure

EPSS: 0.000 (8.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N.

Affected products

Laurent22 Joplin — versions < 3.5.3

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-34600?: CVE-2026-34600 is a medium-severity vulnerability in Laurent22 Joplin, classified under Information Disclosure. CVSS score: 5.7/10. Published 2026-05-19.
How severe is CVE-2026-34600?: Medium severity. CVSS v3 base score is 5.7 out of 10.